## Biostatistics Homework 5

There may be divergence in the brain sizes of migratory versus resident birds. Of course, brain sizes are relative to body size. The data for this homework come from: Daniel Sol, Núria Garcia, Andrew Iwaniuk, Katie Davis, Andrew Meade, W. Alice Boyle, and Tamás Székely. 2010. Evolutionary Divergence in Brain Size between Migratory and Resident Birds. PLoS ONE 5(3): e9617 and are given far below. I believe that mass is recorded in grams in this paper. The analysis I am walking you through below ignores the fact that these data may well not be independent points but are instead related through a phylogeny. Whether and how phylogeny should be incorporated into this analysis is a more complex issue than the scope of this course allows.

1. Plot a scatterplot of Brain Mass against Body Mass to convince yourself that the data need to be log transformed in both variables - look for curvature and heteroscedasticity. In R, to plot a scatterplot of x against y you type:
```plot(x, y, type="p")
```
2. Plot a scatterplot of the log of Brain Mass against the log of Body mass and convince yourself that it looks pretty linear. To color the points according to migration you can try code such as:
```plot(log(Body_Mass), log(Brain_Mass), type="p", col=migration)
```
3. Do migratory and resident birds have similar brain sizes? To answer this, run the regression model of log Brain_Mass on log Body_Mass with indicator variables for migration. Migration is recorded as 0, 1, 2, 3, 4 indicating how far the species migrates: 0) no populations of species is migratory anywhere in its distribution, 1) altitudinal movements and other movements less than 100 km, 2) movements between 100 and 700 km, 3) 700–1500 km, and 4)>1500 km.

In Minitab, be sure to indicate that migration is a factor, not a continuous predictor.

In R, this is done as follows:

``` summary(lm(log(Brain_Mass)~ log(Body_Mass) + as.factor(migration))
```
4. Are the migration terms significant? What happens to the relationship between brain mass and body mass with increasing migration? How do you think brain mass is influenced by migration?
5. The authors of the paper report "... that in passerine birds, migratory species tend to have brains that are substantially smaller (relative to body size) than those of resident species, confirming and generalizing previous studies." Do you see any areas where the analysis I outlined and you ran above could be flawed for answering the question about the relationship between brain size and body size and migration?
```Family	Species	migration	Body_Mass	Brain_Mass	Source
Aegithalidae	Aegithalos_caudatus	1	8.20	0.50	Published
Aegithalidae	Aegithalos_concinnus	0	6.10	0.38	Published
Aegithalidae	Psaltriparus_minimus	1	5.30	0.36	Endocast
Alaudidae	Eremophila_bilopha	0	23.55	0.85	Endocast
Alaudidae	Galerida_cristata	0	42.13	1.08	Published
Alaudidae	Mirafra_javanica	1	23.00	0.76	Published
Bombycillidae	Dulus_dominicus	0	47.60	1.32	Endocast
Certhiidae	Auriparus_flaviceps	0	6.60	0.46	Endocast
Certhiidae	Campylorhynchus_bruneicapillus	0	38.90	1.39	Endocast
Certhiidae	Certhia_familiaris	0	8.42	0.55	Endocast
Certhiidae	Cyphorhinus_aradus	0	18.70	0.94	Endocast
Certhiidae	Donacobius_atricapillus	0	34.80	1.19	Published
Certhiidae	Henicorhina_leucosticta	0	13.90	0.81	Endocast
Certhiidae	Polioptila_dumicola	0	7.60	0.43	Published
Certhiidae	Ramphocaenus_melanurus	0	9.80	0.53	Published
Certhiidae	Thryomanes_bewickii	1	9.80	0.54	Endocast
Certhiidae	Thryothurus_ludovicianus	0	18.70	0.88	Endocast
Cinclidae	Cinclus_mexicanus	0	57.80	1.45	Published
Cisticolidae	Cisticola_cherinus	0	10.00	0.45	Published
Cisticolidae	Cisticola_fulvicapilla	0	10.30	0.53	Endocast
Cisticolidae	PriniaSchistolais_leucopogon	0	13.80	0.61	Published
Climacteridae	Climacteris_picumnus	0	30.30	1.04	Endocast
Climacteridae	Climacteris_rufa	0	33.30	1.07	Endocast
Climacteridae	Cormobates_leucophaeus	0	22.40	0.84	Endocast
Conopophagidae	Conopophaga_lineata	0	21.80	0.73	Endocast
Corvidae	Aegithina_tiphia	0	12.30	0.69	Endocast
Corvidae	Aphelocoma_caerulescens	0	76.00	2.95	Endocast
Corvidae	Aphelocoma_ultramarina	0	128.40	3.74	Published
Corvidae	Artamus_cinereus	0	38.00	0.95	Endocast
Corvidae	Artamus_cyanopterus	0	35.50	1.04	Endocast
Corvidae	Artamus_leucorhynchus	1	45.60	1.12	Endocast
Corvidae	Artamus_superciliosus	1	39.20	1.08	Endocast
Corvidae	Batis_capensis	1	12.80	0.70	Endocast
Corvidae	Bias_musicus	1	21.70	0.87	Published
Corvidae	Campephaga_phoenicea	0	28.50	1.09	Endocast
Corvidae	Cicinnurus_regius	0	52.00	1.80	Endocast
Corvidae	Cinclosoma_cinnamomeum	0	58.60	1.52	Published
Corvidae	Cissa_chinensis	0	106.50	4.33	Published
Corvidae	Colluricincla_harmonica	0	63.30	2.07	Endocast
Corvidae	Coracina_caledonica	0	145.30	3.10	Published
Corvidae	Coracina_novaehollandiae	1	127.70	2.49	Endocast
Corvidae	Corcorax_melanorhamphus	1	349.10	5.39	Endocast
Corvidae	Corvus_albicollis	0	900.00	12.00	Published
Corvidae	Corvus_albus	0	584.10	9.07	Endocast
Corvidae	Corvus_brachyrhynchos	4	438.50	7.43	Endocast
Corvidae	Corvus_corax	0	1405.00	15.31	Endocast
Corvidae	Corvus_corone	4	523.95	7.36	Endocast
Corvidae	Corvus_coronoides	0	675.00	10.18	Endocast
Corvidae	Corvus_cryptoleucos	2	534.00	9.27	Endocast
Corvidae	Corvus_frugilegus	3	509.30	8.13	Endocast
Corvidae	Corvus_mellori	0	300.00	8.81	Endocast
Corvidae	Corvus_monedula	2	211.29	4.69	Endocast
Corvidae	Corvus_orru	0	522.20	9.23	Endocast
Corvidae	Corvus_ossifragus	0	285.00	6.21	Endocast
Corvidae	Cracticus_torquatus	0	104.10	2.88	Published
Corvidae	Cyanocitta_cristata	3	89.10	3.03	Endocast
Corvidae	Cyanocitta_stelleri	0	128.00	3.67	Endocast
Corvidae	Cyanocorax_chrysops	0	157.00	4.30	Published
Corvidae	Cyanocorax_yncas	0	78.50	2.40	Published
Corvidae	Cyanopica_cyana	0	72.00	3.00	Published
Corvidae	Dendrocitta_vagabunda	0	100.00	2.80	Published
Corvidae	Dryoscopus_cubla	0	26.40	1.17	Endocast
Corvidae	Falculuncus_frontatus	1	26.10	1.28	Endocast
Corvidae	Garrulus_glandarius	0	168.89	4.15	Published
Corvidae	Grallina_cyanoleuca	0	89.00	1.74	Endocast
Corvidae	Gymnorhina_tibicen	0	314.00	4.82	Endocast
Corvidae	Gymnorhinus_cyanocephalus	1	103.00	3.64	Endocast
Corvidae	Hypothymis_azurea	0	10.20	0.54	Endocast
Corvidae	Lalage_sueurii	0	18.90	0.90	Published
Corvidae	Laniarius_erythrogaster	0	45.80	1.62	Published
Corvidae	Lophorina_superba	0	78.00	2.69	Published
Corvidae	Monarcha_guttula	0	15.50	0.70	Endocast
Corvidae	Monarcha_melanopsis	1	20.20	0.95	Endocast
Corvidae	Monarcha_trivirgatus	1	13.50	0.65	Endocast
Corvidae	Myiagra_alecto	0	24.00	0.76	Endocast
Corvidae	Myiagra_caledonica	0	11.00	0.61	Endocast
Corvidae	Myiagra_inquieta	1	14.30	0.79	Endocast
Corvidae	Nucifraga_caryocatactes	0	189.47	5.71	Published
Corvidae	Oreoica_gutturalis	0	62.00	1.73	Endocast
Corvidae	Oriolus_oriolus	4	71.90	1.50	Published
Corvidae	Parotia_lawesii	0	156.50	4.15	Endocast
Corvidae	Pericrocotus_ethologus	1	18.00	0.91	Endocast
Corvidae	Perisoreus_canadensis	0	69.00	2.62	Endocast
Corvidae	Pica_pica	0	206.13	5.34	Endocast
Corvidae	Pitohui_ferrugineus	0	94.00	2.57	Published
Corvidae	Platysteira_cyanea	0	11.84	0.60	Published
Corvidae	Podoce_hendersoni	0	149.00	3.40	Published
Corvidae	Prionops_plumatus	1	35.50	1.20	Endocast
Corvidae	Psilorhinus_morio	0	204.00	4.97	Published
Corvidae	Psophodes_occidentalis	0	42.00	1.38	Published
Corvidae	Ptiloris_paradiseus	0	125.50	2.88	Endocast
Corvidae	Ptiloris_victoriae	0	92.00	2.63	Endocast
Corvidae	Pyrrhocorax_graculus	1	223.50	3.20	Published
Corvidae	Pyrrhocorax_pyrrhocorax	1	324.00	6.61	Published
Corvidae	Rhipidura_leucophrys	1	27.70	0.60	Published
Corvidae	Rhipidura_rufifrons	1	10.20	0.37	Endocast
Corvidae	Sphecotheres_viridis	1	132.40	2.32	Endocast
Corvidae	Strepera_fuliginosa	0	300.00	5.91	Endocast
Corvidae	Struthidea_cinerea	1	134.30	3.09	Endocast
Corvidae	Tchagra_australis	0	36.30	1.27	Published
Corvidae	Telophorus_zeylonus	0	62.70	1.98	Endocast
Corvidae	Tephrodornis_pondicerianus	0	19.50	0.92	Published
Corvidae	Urocissa_erythrorhyncha	1	214.00	3.80	Published
Eurylaimidae	Smithornis_capensis	0	25.50	0.81	Published
Formicariidae	Chamaeza_campanisona	0	97.20	1.90	Published
Formicariidae	Formicarius_analis	0	54.20	1.35	Endocast
Formicariidae	Formicarius_colma	0	45.30	1.12	Endocast
Formicariidae	Grallaria_quitensis	0	79.50	2.12	Endocast
Fringillidae	Agelaius_phoeniceus	3	65.50	1.75	Endocast
Fringillidae	Agelaius_ruficapillus	1	36.75	0.81	Published
Fringillidae	Aimophila_cassinii	2	18.10	0.81	Endocast
Fringillidae	Amblycercus_holosericeus	0	66.90	2.29	Endocast
Fringillidae	Amblyramphus_holosericeus	0	69.00	2.41	Endocast
Fringillidae	Ammodramus_savannarum	4	17.00	0.67	Published
Fringillidae	Amphispiza_bilineata	3	13.80	0.70	Endocast
Fringillidae	Anisognathus_somptuosus	0	42.00	1.54	Published
Fringillidae	Arremonops_conirostris	0	37.30	1.34	Published
Fringillidae	Basileuterus_culicivorus	0	8.90	0.60	Endocast
Fringillidae	Basileuterus_fulvicauda	0	14.90	0.58	Published
Fringillidae	BuarremonAtlapetes_brunneinucha	0	46.60	1.60	Endocast
Fringillidae	Cacicus_cela	0	91.50	2.52	Published
Fringillidae	Calamospiza_melanocorys	4	37.80	1.22	Endocast
Fringillidae	Calcarius_lapponicus	4	27.50	0.90	Endocast
Fringillidae	Cardellina_rubrifrons	0	9.80	0.45	Endocast
Fringillidae	Cardinalis_cardinalis	0	44.10	1.57	Published
Fringillidae	Carduelis_ambigua	1	14.10	0.66	Published
Fringillidae	Carduelis_cannabina	3	18.78	0.67	Published
Fringillidae	Carduelis_carduelis	3	15.00	0.59	Endocast
Fringillidae	Carduelis_chloris	2	26.50	0.89	Published
Fringillidae	Carduelis_flammea	3	12.13	0.60	Endocast
Fringillidae	Carduelis_pinus	2	14.60	0.59	Endocast
Fringillidae	Carduelis_spinus	2	12.08	0.56	Published
Fringillidae	Carduelis_tristis	3	12.90	0.56	Published
Fringillidae	Carpodacus_mexicanus	0	20.40	0.81	Endocast
Fringillidae	Carpodacus_purpureus	2	25.60	0.93	Endocast
Fringillidae	Carpodacus_roseus	4	21.15	1.01	Published
Fringillidae	Caryothraustes_poliogaster	0	37.50	1.48	Published
Fringillidae	Chlorophonia_cyanea	0	14.00	0.63	Published
Fringillidae	Chlorospingus_ophthalmicus	0	19.00	1.02	Endocast
Fringillidae	Chlorothraupis_carmioli	0	39.00	1.35	Published
Fringillidae	Cissopis_leveriana	0	76.00	1.77	Published
Fringillidae	Coccothraustes_coccothraustes	0	54.00	1.63	Published
Fringillidae	Coereba_flaveola	0	8.50	0.46	Endocast
Fringillidae	Coryphospingus_cucullatus	0	14.60	0.69	Endocast
Fringillidae	Curaeus_curaeus	0	90.00	2.56	Published
Fringillidae	Cyanerpes_cyaneus	0	14.00	0.57	Endocast
Fringillidae	Dacnis_cayana	0	13.00	0.57	Published
Fringillidae	Dendroica_caerulescens	4	9.40	0.45	Endocast
Fringillidae	Dendroica_castanea	4	12.00	0.41	Published
Fringillidae	Dendroica_magnolia	4	8.70	0.38	Published
Fringillidae	Dendroica_pensylvanica	4	9.40	0.39	Published
Fringillidae	Dendroica_petechia	4	9.80	0.54	Endocast
Fringillidae	Dives_dives	0	96.20	2.28	Published
Fringillidae	Dolichonyx_oryzivorus	4	38.70	1.11	Published
Fringillidae	Emberiza_cirlus	1	23.10	0.79	Published
Fringillidae	Emberiza_citrinella	3	28.58	0.82	Published
Fringillidae	Emberiza_elegans	3	20.50	0.64	Published
Fringillidae	Emberiza_rutilla	4	17.18	0.59	Published
Fringillidae	Emberiza_schoeniclus	4	20.57	0.68	Published
Fringillidae	Emberiza_spodocephala	4	18.00	0.96	Published
Fringillidae	Euneornis_campestris	0	16.20	0.73	Endocast
Fringillidae	Euphagus_carolinus	4	55.70	1.56	Endocast
Fringillidae	Euphagus_cyanocephalus	3	68.50	1.49	Endocast
Fringillidae	Euphonia_jamaica	0	16.10	0.67	Published
Fringillidae	Fringilla_coelebs	4	24.26	0.77	Endocast
Fringillidae	Fringilla_montifringilla	3	24.94	0.78	Published
Fringillidae	Gnorimopsar_chopi	1	79.50	1.86	Published
Fringillidae	Gymnostinops_montezuma	0	376.50	6.10	Endocast
Fringillidae	Habia_fuscicauda	1	39.70	1.39	Published
Fringillidae	Helmitheros_vermivorus	4	14.20	0.61	Endocast
Fringillidae	Hemithraupis_guira	0	12.00	0.59	Published
Fringillidae	Himatione_sanguinea	0	14.80	0.69	Published
Fringillidae	Icteria_virens	4	24.90	0.94	Published
Fringillidae	Icterus_galbula	4	33.30	1.17	Endocast
Fringillidae	Icterus_spurius	4	20.40	0.89	Endocast
Fringillidae	Junco_hyemalis	4	19.00	0.86	Endocast
Fringillidae	Leucosticte_arctoa	0	25.60	1.36	Published
Fringillidae	Limnothlypis_swainsonii	3	14.00	0.69	Endocast
Fringillidae	Loxia_curvirostra	0	34.30	1.47	Endocast
Fringillidae	Loxia_leucoptera	0	31.80	1.43	Endocast
Fringillidae	Loxigilla_violacea	0	28.00	1.20	Endocast
Fringillidae	Loxipasser_anoxanthus	0	11.30	0.59	Endocast
Fringillidae	Melopyrrha_nigra	0	10.90	0.87	Endocast
Fringillidae	Melospiza_georgiana	4	17.60	0.84	Published
Fringillidae	Melospiza_melodia	4	20.50	0.96	Published
Fringillidae	Mitrospingus_cassinii	0	40.40	1.36	Published
Fringillidae	Mniotilta_varia	4	12.00	0.46	Endocast
Fringillidae	Molothrus_ater	3	41.70	1.19	Endocast
Fringillidae	Molothrus_badius	0	44.50	1.53	Endocast
Fringillidae	Myioborus_pictus	0	9.80	0.40	Endocast
Fringillidae	Nesospingus_speculiferus	0	36.20	1.48	Endocast
Fringillidae	Paroaria_coronata	0	43.00	1.27	Published
Fringillidae	Passerculus_sandwichensis	4	20.10	0.70	Published
Fringillidae	Passerina_cyanea	4	12.20	0.67	Endocast
Fringillidae	Phaenocophilus_palmarum	0	29.20	1.17	Endocast
Fringillidae	Pheucticus_ludovicianus	4	45.60	1.37	Endocast
Fringillidae	Pinicola_enucleator	0	65.70	1.64	Endocast
Fringillidae	Pipilo_erythrophthalmus	2	39.20	1.41	Endocast
Fringillidae	Protonotaria_citrea	4	15.50	0.61	Published
Fringillidae	Pseudoleistes_virescens	0	70.40	2.08	Endocast
Fringillidae	Pyrrhula_Pyrrhula	2	21.80	0.97	Published
Fringillidae	Quiscalus_major	0	158.80	2.88	Endocast
Fringillidae	Quiscalus_mexicanus	0	168.70	3.07	Endocast
Fringillidae	Quiscalus_quiscula	4	110.20	2.68	Endocast
Fringillidae	Rhodinocichla_rosea	0	46.70	1.40	Published
Fringillidae	Rhodospingus_cruentus	0	10.80	0.54	Published
Fringillidae	Saltator_maximus	0	46.60	1.44	Endocast
Fringillidae	Scaphidura_oryzivora	0	190.50	3.25	Endocast
Fringillidae	Schistochlamys_melanopis	0	33.00	1.26	Published
Fringillidae	Seiurus_aurocapilla	4	22.10	0.73	Endocast
Fringillidae	Serinus_burtoni	0	29.60	1.21	Published
Fringillidae	Serinus_canaria	0	8.40	0.45	Published
Fringillidae	Serinus_flaviventris	0	16.30	0.75	Endocast
Fringillidae	Serinus_serinus	3	11.20	0.65	Published
Fringillidae	Setophaga_ruticilla	4	7.80	0.37	Endocast
Fringillidae	Sicalis_flaveola	0	19.70	0.73	Published
Fringillidae	Spindalis_zena	0	42.50	1.36	Endocast
Fringillidae	Spiza_americana	4	27.00	0.94	Endocast
Fringillidae	Spizella_arborea	4	12.40	0.77	Published
Fringillidae	Sporophila_americana	0	10.70	0.62	Published
Fringillidae	Sturnella_magna	3	89.00	2.30	Published
Fringillidae	Sturnella_neglecta	3	103.50	2.01	Endocast
Fringillidae	Tachyphonus_delattrii	0	16.80	0.77	Published
Fringillidae	Tangara_cyanicollis	0	17.00	0.66	Published
Fringillidae	Tangara_icterocephala	0	15.00	0.59	Published
Fringillidae	Thraupis_episcopus	0	31.10	1.15	Endocast
Fringillidae	Tiaris_olivacea	0	8.50	0.50	Endocast
Fringillidae	Vermivora_peregrina	4	9.50	0.45	Endocast
Fringillidae	Vermivora_pinus	4	8.40	0.42	Published
Fringillidae	Volatinia_jacarina	1	12.50	0.51	Endocast
Fringillidae	Xanthocephalus_xanthocephalus	4	76.60	1.71	Endocast
Fringillidae	Zonotrichia_albicollis	4	27.40	1.09	Endocast
Fringillidae	Zonotrichia_capensis	1	20.30	0.80	Published
Fringillidae	Zonotrichia_leucophrys	2	26.40	1.00	Endocast
Furnariidae	Anumbius_annumbi	0	41.50	1.22	Endocast
Furnariidae	Aphrastura_spinicauda	0	11.50	0.84	Endocast
Furnariidae	Automolus_infuscatus	0	33.10	1.17	Endocast
Furnariidae	Automolus_ochrolaemus	0	40.20	1.18	Endocast
Furnariidae	Campylorhamphus_pusillus	1	43.30	1.39	Endocast
Furnariidae	Certhiaxis_cinnamomea	0	14.80	0.71	Endocast
Furnariidae	Cinclodes_fuscus	1	30.45	0.93	Endocast
Furnariidae	Cinclodes_patagonicus	1	53.20	1.28	Endocast
Furnariidae	Coryphistera_alaudina	0	34.30	0.97	Endocast
Furnariidae	Dendrocincla_fuliginosa	1	39.40	1.10	Endocast
Furnariidae	Dendrocolaptes_certhia	0	66.70	1.80	Endocast
Furnariidae	Furnarius_rufus	0	63.70	1.35	Endocast
Furnariidae	Glyphorhynchus_spirurus	1	14.80	0.64	Endocast
Furnariidae	Lepidocolaptes_affinis	1	29.00	1.17	Published
Furnariidae	Lepidocolaptes_souleyetii	0	25.70	1.08	Published
Furnariidae	Phacellodomus_ruber	0	39.30	1.15	Endocast
Furnariidae	Phleocryptes_melanops	1	14.20	0.71	Endocast
Furnariidae	Sclerurus_mexicanus	0	21.10	0.82	Endocast
Furnariidae	Sittasomus_griseicapillus	0	14.00	0.57	Endocast
Furnariidae	Xenops_minutus	0	11.70	0.51	Endocast
Furnariidae	Xiphorhynchus_guttatus	0	46.40	1.55	Endocast
Furnariidae	Xiphorhynchus_picus	0	34.60	1.35	Endocast
Hirundinidae	Delichon_urbica	4	14.50	0.50	Published
Hirundinidae	Hirundo_rustica	4	17.54	0.58	Endocast
Hirundinidae	Notiochelidon_cyanoleuca	4	9.70	0.45	Published
Hirundinidae	Progne_subis	4	50.70	1.07	Endocast
Hirundinidae	Riparia_riparia	4	13.80	0.42	Endocast
Hirundinidae	Stelgidopteryx_ruficollis	3	15.20	0.55	Published
Hirundinidae	Tachycineta_bicolor	4	20.10	0.57	Endocast
Hirundinidae	Tachycineta_thalassina	4	15.10	0.48	Endocast
Irenidae	Chloropsis_hardwickii	1	23.75	0.76	Published
Irenidae	Chloropsis_palawanensis	0	30.50	1.09	Published
Irenidae	Irena_puella	0	58.37	1.12	Endocast
Laniidae	Lanius_collaris	0	35.85	1.11	Published
Laniidae	Lanius_collurio	4	29.90	0.99	Endocast
Laniidae	Lanius_excubitor	3	59.63	1.48	Published
Laniidae	Lanius_ludovicianus	4	47.40	1.59	Endocast
Laniidae	Lanius_senator	4	27.80	1.11	Endocast
Maluridae	Amytornis_goyderi	0	16.70	0.81	Published
Maluridae	Malurus_cyaneus	0	8.30	0.49	Endocast
Maluridae	Malurus_elegans	0	10.10	0.59	Endocast
Maluridae	Malurus_lamberti	0	9.20	0.48	Endocast
Maluridae	Malurus_leucopterus	0	8.00	0.40	Endocast
Maluridae	Malurus_melanocephalus	0	7.00	0.47	Endocast
Maluridae	Malurus_pulcherrimus	0	9.80	0.44	Endocast
Maluridae	Malurus_splendens	0	11.40	0.47	Endocast
Melanocharitidae	Toxorhamphus_iliolophum	0	12.90	0.50	Published
Melanocharitidae	Toxorhamphus_poliopterus	0	11.40	0.45	Endocast
Meliphagidae	Acanthagenys_rufogularis	0	50.20	1.20	Published
Meliphagidae	Acanthorynchus_tenuirostris	1	11.20	0.50	Endocast
Meliphagidae	Anthochaera_carunculata	1	108.50	2.28	Endocast
Meliphagidae	Anthochaera_chrysoptera	1	66.30	1.76	Endocast
Meliphagidae	Ashbyia_lovensis	0	17.50	0.69	Published
Meliphagidae	Conopophila_rufogularis	1	10.80	0.46	Published
Meliphagidae	Entomyzon_cyanotis	1	106.50	2.31	Endocast
Meliphagidae	Epthianura_aurifrons	1	10.30	0.45	Endocast
Meliphagidae	Epthianura_tricolor	1	10.70	0.46	Endocast
Meliphagidae	Lichenostomus_chrysops	1	17.50	0.75	Endocast
Meliphagidae	Lichenostomus_flavescens	1	12.60	0.54	Endocast
Meliphagidae	Lichenostomus_flavus	0	21.10	0.74	Endocast
Meliphagidae	Lichenostomus_keartlandi	1	15.30	0.71	Endocast
Meliphagidae	Lichenostomus_leucotis	1	22.10	0.92	Endocast
Meliphagidae	Lichenostomus_melanops	1	19.80	0.95	Endocast
Meliphagidae	Lichenostomus_ornatus	1	19.80	0.78	Endocast
Meliphagidae	Lichenostomus_penicillatus	1	19.20	0.86	Endocast
Meliphagidae	Lichenostomus_virescens	1	33.30	0.95	Endocast
Meliphagidae	Lichmera_indistincta	1	11.40	0.53	Endocast
Meliphagidae	Manorina_flavigula	0	59.80	1.42	Endocast
Meliphagidae	Manorina_melanocephala	0	60.90	1.93	Endocast
Meliphagidae	Manorina_melanophrys	0	25.50	1.18	Endocast
Meliphagidae	Meliphaga_lewinii	1	36.20	1.21	Endocast
Meliphagidae	Meliphaga_notata	1	26.40	0.90	Endocast
Meliphagidae	Melithreptus_albogularis	1	11.10	0.65	Endocast
Meliphagidae	Melithreptus_brevirostris	1	14.30	0.70	Endocast
Meliphagidae	Melithreptus_lunatus	1	14.10	0.62	Endocast
Meliphagidae	Myzomela_obscura	1	11.90	0.53	Endocast
Meliphagidae	Myzomela_sanguinolenta	1	7.80	0.35	Endocast
Meliphagidae	Philemon_buceroides	1	121.00	2.23	Endocast
Meliphagidae	Philemon_corniculatus	1	105.80	2.05	Endocast
Meliphagidae	Phylidonyris_albifrons	1	17.10	0.75	Published
Meliphagidae	Phylidonyris_melanops	1	18.30	0.64	Published
Meliphagidae	Phylidonyris_novaehollandiae	1	19.40	0.93	Published
Meliphagidae	Ramsayornis_modestus	0	10.60	0.53	Endocast
Meliphagidae	Xanthotis_flaviventer	1	33.60	1.09	Endocast
Muscicapidae	Alethe_diademata	0	33.60	1.08	Published
Muscicapidae	Brachypteryx_montana	1	18.00	0.86	Endocast
Muscicapidae	Catharus_fuscescens	4	41.50	0.95	Endocast
Muscicapidae	Catharus_minimus	4	32.80	0.80	Published
Muscicapidae	Catharus_ustulatus	4	30.80	0.82	Published
Muscicapidae	Cercotrichas_coryphaeus	0	23.10	0.75	Endocast
Muscicapidae	Cichlerminia_lherminieri	0	100.00	2.28	Endocast
Muscicapidae	Copsychus_malabaricus	0	30.00	0.90	Published
Muscicapidae	Copsychus_sauIaris	0	33.20	1.14	Published
Muscicapidae	Cossypha_caffra	1	28.50	1.06	Endocast
Muscicapidae	Culicicapa_helianthea	0	7.50	0.32	Endocast
Muscicapidae	Enicurus_scouleri	1	14.00	0.79	Endocast
Muscicapidae	Erithacus_rubecula	1	16.75	0.66	Published
Muscicapidae	Hylocichla_mustelinus	4	47.40	1.30	Endocast
Muscicapidae	Monticola_saxatilis	4	48.50	1.34	Published
Muscicapidae	Myadestes_genibarbis	1	27.10	0.95	Endocast
Muscicapidae	Myadestes_townsendi	4	32.50	1.05	Endocast
Muscicapidae	Phoenicurus_ochruros	1	16.50	0.70	Endocast
Muscicapidae	Rhinomyias_gularis	0	18.00	1.09	Published
Muscicapidae	Saxicola_torquata	1	15.30	0.63	Endocast
Muscicapidae	Sialia_mexicana	1	26.40	0.87	Endocast
Muscicapidae	Sigelus_silens	0	28.30	1.04	Published
Muscicapidae	Turdus_merula	3	98.17	1.92	Endocast
Muscicapidae	Turdus_migratorius	4	80.20	1.70	Endocast
Muscicapidae	Turdus_philomelos	4	69.64	1.59	Endocast
Muscicapidae	Zoothera_lunulata	0	104.00	2.24	Endocast
Nectariniidae	Aethopyga_nipalensis	1	6.00	0.34	Published
Nectariniidae	Anthreptes_malacensis	0	11.90	0.60	Endocast
Nectariniidae	Arachnothera_longirostra	1	11.70	0.54	Endocast
Nectariniidae	Dicaeum_aeruginosum	1	11.80	0.52	Published
Nectariniidae	Dicaeum_hirundinaceum	1	8.00	0.38	Endocast
Nectariniidae	Nectarinia_jugularis	1	8.70	0.41	Endocast
Nectariniidae	Nectarinia_verticalis	0	14.00	0.52	Published
Nectariniidae	Prionochilus_plateri	0	7.90	0.41	Endocast
Orthonychidae	Orthonyx_temminckii	0	62.30	1.82	Endocast
Pardalotidae	Acanthiza_chrysorrhoa	1	10.00	0.45	Endocast
Pardalotidae	Acanthiza_lineata	0	6.40	0.53	Endocast
Pardalotidae	Acanthiza_pusilla	1	6.00	0.47	Endocast
Pardalotidae	Acanthiza_reguloides	0	7.50	0.40	Endocast
Pardalotidae	Acanthiza_uropygialis	0	6.50	0.37	Endocast
Pardalotidae	Aphelocephala_leucopsis	0	12.90	0.56	Endocast
Pardalotidae	Dasyornis_broadbenti	0	83.30	1.95	Endocast
Pardalotidae	Pardalotus_punctatus	1	9.20	0.41	Endocast
Pardalotidae	Pardalotus_striatus	1	11.60	0.54	Endocast
Pardalotidae	Sericornis_citreogularis	0	16.60	0.82	Endocast
Pardalotidae	Sericornis_magnirostris	0	8.50	0.62	Endocast
Paridae	Baeolophus_bicolor	0	21.60	1.05	Endocast
Paridae	Parus_ater	1	8.00	0.51	Published
Paridae	Parus_caeruleus	1	10.79	0.65	Published
Paridae	Parus_cristatus	0	10.20	0.70	Published
Paridae	Parus_cyanus	0	9.95	0.66	Published
Paridae	Parus_major	0	17.02	0.85	Published
Paridae	Parus_montanus	1	10.20	0.79	Published
Paridae	Parus_palustris	1	10.60	0.58	Published
Paridae	Parus_venustulus	0	10.54	0.53	Published
Paridae	Poecile_atricapillus	0	12.00	0.79	Endocast
Paridae	Poecile_carolinensis	0	10.20	0.62	Published
Paridae	Poecile_gambeli	0	11.30	0.78	Endocast
Paridae	Poecile_hudsonicus	0	11.00	0.74	Endocast
Passeridae	Amadina_fasciata	0	15.40	0.61	Published
Passeridae	Amandava_amandava	4	9.60	0.39	Endocast
Passeridae	Anthus_berthelotii	0	15.99	0.52	Published
Passeridae	Anthus_campestris	4	23.00	0.48	Published
Passeridae	Anthus_novaeseelandiae	1	27.90	0.87	Published
Passeridae	Anthus_pratensis	4	18.40	0.53	Published
Passeridae	Anthus_trivialis	4	18.40	0.62	Endocast
Passeridae	Bubalornis_albirostris	0	64.50	2.21	Published
Passeridae	Chloebia_gouldiae	2	10.00	0.55	Published
Passeridae	Erythrura_trichroa	1	14.40	0.60	Endocast
Passeridae	Estrilda_astrild	1	7.50	0.35	Published
Passeridae	Estrilda_troglodytes	0	6.10	0.36	Published
Passeridae	Euplectes_orix	1	16.30	0.79	Published
Passeridae	Foudia_madagascariensis	0	16.00	0.78	Endocast
Passeridae	Lagonosticta_senegala	1	8.30	0.40	Published
Passeridae	Lonchura_bicolor	0	9.69	0.44	Published
Passeridae	Lonchura_cucullata	1	9.20	0.39	Endocast
Passeridae	Lonchura_flaviprymna	1	11.68	0.43	Published
Passeridae	Lonchura_malacca	0	12.60	0.62	Endocast
Passeridae	Lonchura_pallida	0	10.65	0.52	Published
Passeridae	Lonchura_spectabilis	0	7.90	0.49	Published
Passeridae	Lonchura_striata	1	12.30	0.48	Published
Passeridae	Montifringilla_nivalis	1	36.90	1.09	Published
Passeridae	Motacilla_alba	4	18.96	0.58	Published
Passeridae	Motacilla_flava	4	14.40	0.57	Published
Passeridae	Neochmia_phaethon	0	10.00	0.52	Endocast
Passeridae	Neochmia_temporalis	0	10.90	0.54	Endocast
Passeridae	Padda_oryzivora	0	24.50	0.88	Endocast
Passeridae	Passer_domesticus	0	28.49	0.92	Endocast
Passeridae	Passer_griseus	1	23.90	0.97	Published
Passeridae	Passer_hispaniolensis	4	27.13	0.93	Endocast
Passeridae	Passer_montanus	0	21.38	0.79	Published
Passeridae	Passer_rutilans	1	18.35	0.68	Published
Passeridae	Plocepasser_mahali	0	43.30	1.27	Published
Passeridae	Ploceus_cucullatus	0	40.90	1.42	Endocast
Passeridae	Poephila_acuticauda	0	14.00	0.53	Endocast
Passeridae	Poephila_cincta	0	16.10	0.49	Published
Passeridae	Poephila_personata	0	11.80	0.52	Endocast
Passeridae	Prunella_modularis	1	20.41	0.71	Endocast
Passeridae	Pyrenestes_sanguineous	0	14.27	0.97	Published
Passeridae	Pytilia_melba	1	13.50	0.59	Published
Passeridae	Pytilia_phoenicoptera	2	14.50	0.37	Published
Passeridae	Spermophaga_haematina	0	16.87	0.91	Published
Passeridae	Staganopleura_guttata	1	19.00	0.65	Published
Passeridae	Taeniopygia_bichenovii	1	10.50	0.41	Endocast
Passeridae	Taeniopygia_guttata	0	12.00	0.46	Endocast
Passeridae	Uraeginthus_bengalus	1	10.30	0.45	Published
Passeridae	Vidua_paradisaea	1	22.20	0.66	Endocast
Petroicidae	Drymodes_brunneopygia	0	38.70	0.98	Endocast
Petroicidae	Eopsaltria_australis	0	19.60	0.89	Endocast
Petroicidae	Eopsaltria_griseogularis	0	21.10	0.86	Endocast
Petroicidae	Melanodryas_cucullata	0	24.30	0.83	Endocast
Petroicidae	Microeca_fascinans	1	11.40	0.56	Published
Petroicidae	Microeca_flavigaster	1	12.70	0.53	Endocast
Petroicidae	Pachycephalopsis_poliosoma	0	38.30	1.10	Endocast
Petroicidae	Petroica_goodenovii	1	8.70	0.38	Endocast
Petroicidae	Petroica_multicolor	1	9.60	0.54	Endocast
Petroicidae	Tragellasia_leucops	0	16.00	0.61	Published
Pittidae	Pitta_brachyura	4	55.50	1.44	Published
Pittidae	Pitta_erythrogaster	0	48.35	0.95	Published
Pittidae	Pitta_guajana	0	69.51	1.42	Published
Pittidae	Pitta_sordida	4	51.51	1.25	Endocast
Pittidae	Pitta_versicolor	1	107.70	1.94	Endocast
Pomatostomidae	Pomatostomus_halli	0	37.50	1.66	Endocast
Pomatostomidae	Pomatostomus_isidorei	0	64.00	2.26	Endocast
Pomatostomidae	Pomatostomus_ruficeps	1	56.00	2.43	Published
Pomatostomidae	Pomatostomus_superciliosus	0	35.00	1.57	Endocast
Pomatostomidae	Pomatostomus_temporalis	0	75.00	1.97	Published
Ptilonorhynchidae	Ailuroedus_crassirostris	0	204.00	4.15	Published
Ptilonorhynchidae	Amblyornis_macgregoriae	0	123.50	3.71	Endocast
Ptilonorhynchidae	Chlamydera_nuchalis	1	199.50	5.19	Endocast
Ptilonorhynchidae	Ptilonorhynchus_violaceus	1	217.00	4.89	Endocast
Ptilonorhynchidae	Sericulus_chrysocephalus	0	100.50	3.46	Endocast
Pycnonotidae	Alophoixus_pallidus	0	46.00	1.28	Published
Pycnonotidae	Chlorocichla_flavicollis	0	45.30	1.53	Published
Pycnonotidae	Nicator_chloris	0	38.20	1.33	Published
Pycnonotidae	Pycnonotus_barbatus	0	35.90	1.17	Published
Pycnonotidae	Pycnonotus_jocosus	0	27.40	0.96	Published
Regulidae	Regulus_regulus	0	5.70	0.38	Published
Rhinocryptidae	Rhinocrypta_lanceolata	0	63.60	1.45	Published
Sittidae	Sitta_canadensis	0	10.50	0.59	Endocast
Sittidae	Sitta_carolinensis	0	17.80	0.89	Endocast
Sittidae	Sitta_europaea	0	23.03	1.11	Published
Sittidae	Sitta_pygmaea	0	10.40	0.57	Endocast
Sturnidae	Acridotheres_tristis	0	115.60	2.57	Endocast
Sturnidae	Aplonis_metallica	1	61.00	1.64	Published
Sturnidae	Dumetella_carolinensis	4	37.80	1.18	Endocast
Sturnidae	Gracula_religiosa	0	192.00	3.81	Published
Sturnidae	Lamprotornis_purpureus	0	115.50	2.20	Published
Sturnidae	Lamprotornis_superbus	0	54.15	1.78	Published
Sturnidae	Margarops_fuscatus	0	109.40	2.43	Endocast
Sturnidae	Margarops_fuscus	0	70.80	1.60	Endocast
Sturnidae	Melanoptila_glabirostris	0	35.00	1.24	Endocast
Sturnidae	Mimus_polyglottos	2	45.20	1.43	Endocast
Sturnidae	Poeoptera_lugubris	0	38.00	1.03	Published
Sturnidae	Sarcops_calvus	0	142.00	2.90	Endocast
Sturnidae	Sturnus_roseus	4	66.50	1.48	Published
Sturnidae	Sturnus_vulgaris	3	109.40	2.24	Endocast
Sturnidae	Toxostoma_curvirostre	0	78.40	2.21	Endocast
Sylviidae	Abroscopus_albogularis	0	5.00	0.33	Endocast
Sylviidae	Acrocephalus_arundinaceus	4	29.90	0.94	Endocast
Sylviidae	Acrocephalus_melanopogon	2	11.27	0.41	Published
Sylviidae	Acrocephalus_orientalis	4	23.98	0.87	Published
Sylviidae	Acrocephalus_palustris	4	11.70	0.39	Published
Sylviidae	Acrocephalus_schoenobaenus	4	10.80	0.47	Endocast
Sylviidae	Acrocephalus_scirpaceus	4	12.30	0.48	Published
Sylviidae	Chaemaea_fasciata	0	14.70	0.80	Published
Sylviidae	Cincloramphus_cruralis	1	43.00	1.16	Published
Sylviidae	Cincloramphus_mathewsi	1	25.00	0.93	Published
Sylviidae	Garrulax_leucolophus	0	123.50	2.55	Published
Sylviidae	Heterophasia_melanoleuca	0	32.60	1.20	Published
Sylviidae	Hippolais_icterina	4	12.74	0.54	Published
Sylviidae	Illadopsis_fulvescens	0	24.40	1.23	Published
Sylviidae	Leiothrix_argentauris	0	26.20	0.97	Published
Sylviidae	Leiothrix_lutea	0	21.80	0.95	Published
Sylviidae	Locustella_fluviatilis	4	18.80	0.45	Published
Sylviidae	Locustella_luscinioides	4	15.00	0.57	Published
Sylviidae	Macronous_gularis	0	13.50	0.67	Endocast
Sylviidae	Megalurus_palustris	0	33.30	1.18	Endocast
Sylviidae	Minla_ignotincta	0	14.30	0.74	Endocast
Sylviidae	Phylloscopus_bonelli	4	7.40	0.35	Endocast
Sylviidae	Phylloscopus_collybita	4	8.02	0.38	Published
Sylviidae	Phylloscopus_sibiliatrix	4	7.20	0.37	Endocast
Sylviidae	Phylloscopus_trochilus	4	9.92	0.31	Published
Sylviidae	Pomatorhinus_ruficollis	0	31.70	1.59	Published
Sylviidae	Pteruthius_flaviscapis	0	39.00	1.55	Published
Sylviidae	Stachyris_whiteheadi	0	19.10	0.85	Endocast
Sylviidae	Sylvia_atricapilla	3	19.37	0.67	Endocast
Sylviidae	Sylvia_borin	4	18.22	0.62	Endocast
Sylviidae	Sylvia_communis	4	14.09	0.56	Published
Sylviidae	Sylvia_curruca	4	12.82	0.53	Published
Sylviidae	Sylvia_hortensis	4	22.25	0.79	Published
Sylviidae	Sylvia_melanocephala	0	10.98	0.53	Published
Sylviidae	Sylvia_nisoria	4	22.80	0.71	Published
Sylviidae	Yuhina_diademata	0	12.00	0.80	Published
Thamnophilidae	Cercomacra_tyrannina	0	16.60	0.77	Published
Thamnophilidae	Dystithamnus_mentalis	0	11.20	0.73	Endocast
Thamnophilidae	Formicivora_grisea	0	9.30	0.47	Published
Thamnophilidae	Gymnocichla_nudiceps	0	32.80	1.10	Published
Thamnophilidae	Gymnopithys_leucaspis	0	31.10	0.79	Published
Thamnophilidae	Hylophylax_naevia	0	12.50	0.61	Endocast
Thamnophilidae	Hylophylax_poecilonota	0	16.60	0.66	Endocast
Thamnophilidae	Hypocnemis_cantator	0	10.00	0.65	Endocast
Thamnophilidae	Myrmotherula_axillaris	0	7.40	0.40	Endocast
Thamnophilidae	Myrmotherula_fulviventris	0	10.20	0.50	Endocast
Thamnophilidae	Phaenostictus_mcleannani	0	51.10	1.11	Published
Thamnophilidae	Pithys_albifrons	0	19.70	0.64	Endocast
Thamnophilidae	Pyriglena_leuconota	0	32.80	0.96	Endocast
Thamnophilidae	Sakesphorus_luctuosus	0	31.00	1.19	Published
Thamnophilidae	Taraba_major	0	67.50	1.57	Endocast
Thamnophilidae	Thamnomanes_caesius	0	14.20	0.63	Endocast
Thamnophilidae	Thamnophilus_caerulescens	0	20.00	1.02	Endocast
Thamnophilidae	Thamnophilus_punctatus	0	22.40	0.97	Published
Tyrannidae	Attila_spadiceus	0	33.20	1.22	Endocast
Tyrannidae	Camptostoma_obsoletum	0	8.00	0.37	Published
Tyrannidae	Chiroxiphia_caudata	0	25.60	0.83	Published
Tyrannidae	Chiroxiphia_linearis	0	18.50	0.70	Endocast
Tyrannidae	Cnemotriccus_fuscatus	3	13.50	0.48	Published
Tyrannidae	Colonia_colonus	1	16.80	0.49	Endocast
Tyrannidae	Contopus_latirostris	0	10.60	0.39	Published
Tyrannidae	Contopus_virens	4	14.20	0.47	Published
Tyrannidae	Elaenia_frantzii	2	19.40	0.63	Endocast
Tyrannidae	Elaenia_martinica	0	18.60	0.67	Endocast
Tyrannidae	Empidonax_minimus	4	10.50	0.38	Endocast
Tyrannidae	Empidonax_virescens	4	12.90	0.45	Published
Tyrannidae	Gymnoderus_foetidus	0	275.00	3.66	Published
Tyrannidae	Hemitriccus_margaritaceiventer	0	7.70	0.47	Published
Tyrannidae	Hymenops_perspicillatus	3	23.10	0.79	Endocast
Tyrannidae	Legatus_leucophaius	4	24.40	0.68	Published
Tyrannidae	Lessonia_rufa	4	14.48	0.44	Published
Tyrannidae	Lipaugus_vociferans	1	82.20	1.69	Endocast
Tyrannidae	Manacus_candei	0	17.60	0.59	Endocast
Tyrannidae	Manacus_manacus	0	19.00	0.61	Endocast
Tyrannidae	Manacus_vitellinus	0	18.20	0.64	Endocast
Tyrannidae	Mecocerculus_leucophrys	1	13.90	0.50	Endocast
Tyrannidae	Mionectes_oligeneus	1	13.20	0.47	Published
Tyrannidae	Mitrephanes_phaeocercus	1	8.60	0.33	Endocast
Tyrannidae	Muscisaxicola_alpina	0	22.80	0.81	Endocast
Tyrannidae	Myiarchus_cinerascens	4	28.80	0.80	Endocast
Tyrannidae	Myiarchus_stolidus	0	19.30	0.67	Endocast
Tyrannidae	Myiarchus_tuberculifer	3	18.70	0.68	Endocast
Tyrannidae	Myiarchus_tyrannulus	3	35.30	1.02	Endocast
Tyrannidae	Myiobius_barbatus	1	11.90	0.36	Endocast
Tyrannidae	Myiodynastes_maculatus	1	45.90	1.17	Endocast
Tyrannidae	Myiopagis_cotta	0	13.00	0.44	Published
Tyrannidae	Myiophobus_fasciatus	3	9.90	0.38	Endocast
Tyrannidae	Myiozetetes_similis	1	27.80	0.85	Endocast
Tyrannidae	Onychorhynchus_coronatus	1	14.00	0.49	Endocast
Tyrannidae	Pachyramphus_cinnamomeus	1	20.30	0.91	Published
Tyrannidae	Pachyramphus_polychopterus	0	20.30	0.77	Endocast
Tyrannidae	Perissocephalus_tricolor	0	339.50	4.87	Endocast
Tyrannidae	Phaeomyias_murina	3	10.00	0.38	Published
Tyrannidae	Phytotoma_rara	1	40.00	1.20	Published
Tyrannidae	Pipra_erythrocephala	0	13.60	0.51	Endocast
Tyrannidae	Pipra_fasciicauda	0	14.30	0.64	Endocast
Tyrannidae	Pipra_mentalis	1	15.20	0.61	Endocast
Tyrannidae	Pitangus_sulphuratus	3	70.20	1.32	Endocast
Tyrannidae	Platyrinchus_concrominus	0	9.70	0.51	Endocast
Tyrannidae	Pseudocolopteryx_flaviventris	2	7.40	0.35	Endocast
Tyrannidae	Pseudotriccus_pelzelni	0	10.90	0.66	Endocast
Tyrannidae	Pyrocephalus_rubinus	3	12.70	0.48	Published
Tyrannidae	Pyroderus_scutatus	0	357.00	4.45	Published
Tyrannidae	Querula_purpurata	0	101.80	2.21	Endocast
Tyrannidae	Rupicola_peruviana	0	243.50	3.48	Published
Tyrannidae	Sayornis_nigricans	2	18.60	0.51	Published
Tyrannidae	Sayornis_phoebe	4	18.30	0.61	Published
Tyrannidae	Sayornis_saya	4	21.70	0.63	Endocast
Tyrannidae	Schiffornis_turdinus	0	30.80	1.11	Endocast
Tyrannidae	Tityra_cayana	1	73.90	1.67	Published
Tyrannidae	Tityra_semifasciata	0	79.30	1.95	Endocast
Tyrannidae	Todirostrum_cinereum	0	6.40	0.32	Endocast
Tyrannidae	Tolmomyias_sulphurescens	0	14.90	0.53	Endocast
Tyrannidae	Tyrannus_savanna	4	28.60	0.76	Published
Tyrannidae	Tyrannus_tyrannus	4	39.50	0.98	Published
Tyrannidae	Xolmis_irupero	0	29.80	0.85	Published
Tyrannidae	Xolmis_pyrope	1	42.80	1.33	Endocast
Vireonidae	Cyclarhis_gujanensis	0	28.80	1.31	Endocast
Vireonidae	Vireo_altiloquus	4	19.50	0.78	Endocast
Vireonidae	Vireo_olivaceus	4	20.30	0.63	Published
Vireonidae	Vireo_philadelphicus	4	12.20	0.48	Published
Zosteropidae	Zosterops_japonicus	0	10.20	0.56	Endocast
Zosteropidae	Zosterops_lateralis	1	10.6	0.49	Endocast

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