taxon,ID,skull_length,orbit_length,group_1,group_2
Accipiter_bicolor,LACM 105653,38.4,23.3,other,other
Accipiter_cooperii,"LACM 88906, LACM 100665, LACM 100425",41.1,25.06666667,other,other
Accipiter_gentilis,LACM 100355,47.2,28.8,other,other
Accipiter_nisus,CSULB 7580,34.3,20.3,other,other
Accipiter_striatus,LACM 100307,31.1,19.2,other,other
Aegolius_acadicus,"CSULB 6150, CSULB 5414, USNM 635124",30.7,15.83333333,other,other
Aegotheles_crinifrons,USNM 560816,29.8,20.8,other,other
Aegotheles_cristatus,USNM 620228,25.8,18,other,other
Aeronautes_montivagus,LACM 105664,19,11.5,other,swifts
Aeronautes_saxatalis,"LACM 111846, LACM 111846, LACM 106103, LACM 115859",19.425,11.7,other,swifts
Aglaiocercus_coelestis,"LACM 108538, LACM 108467, LACM 108542",10.7,5.8,hummingbirds,hummingbirds
Alcedo_atthis,"LACM 120535, LACM 118373",22.5,10.05,other,other
Alisterus_scapularis,LACM 89067,33.9,15.3,other,other
Amazilia_franciae,"LACM 108547, LACM 108559, LACM 108546",12.36666667,6.733333333,hummingbirds,hummingbirds
Amazilia_tzacatl,"LACM 108564, LACM 108563",12.2,6.45,hummingbirds,hummingbirds
Amazona_albifrons,LACM 89144,36.1,14.8,other,other
Amazona_ochrocephala,LACM 113603,44.6,19.7,other,other
Amazona_oratrix,LACM 113601,43.3,18,other,other
Anodorhynchus_hyacinthinus,CSULB 7998,99,21.2,other,other
Anseranas_semipalmata,USNM 347638,55.3,20.7,other,other
Aphelocoma_californica,"LACM 119559, LACM 119570, LACM 119560",29.1,15.2,other,passerines
Apteryx_australis,USNM 500629,51.4,10.4,other,other
Apus_apus,LACM 111734,19.7,13.7,other,swifts
Ara_chloropterus,CSULB 5692,66,20.4,other,other
Archilochus_alexandri,"LACM 109159, LACM 118346, LACM 109157",9.433333333,5.066666667,hummingbirds,hummingbirds
Asio_flammeus,"CSULB 5061, USNM 614841, USNM 610421",35.13333333,19.23333333,other,other
Asio_otus,"LACM 101511, LACM 101403, CSULB 3149",36.3,17.26666667,other,other
Athene_cunicularia,"LACM 100224, LACM 106260, CSULB 5264, CSULB 5426, CSULB 4938, CSULB 4437, LACM 87420, LACM 101402, LACM 100349",32.41111111,18.62222222,other,other
Athene_noctua,"USNM 603594, USNM 603593, USNM 603600",33.3,18.66666667,other,other
Auriparus_flaviceps,"LACM 105322, LACM 89443, LACM 118875",14.63333333,6.9,other,passerines
Batrachostomus_auritus,USNM 430279,36.9,26.9,other,other
Bombycilla_cedrorum,"LACM 106850, LACM 107777, LACM 109148",19.06666667,10,other,passerines
Bubo_bubo,USNM 610383,60.1,40.9,other,other
Bubo_philippensis,USNM 489264,49.5,33,other,other
Bubo_scandiaca,"USNM 639074, USNM 614342, USNM 223673",56.46666667,35.26666667,other,other
Bubo_virginianus,"CSULB 4642, CSULB 4869, CSCLB 3425",53.26666667,32.33333333,other,other
Buteo_buteo,"CSULB 7574, CSULB 7575, CSULB 7608",49.8,32.53333333,other,other
Buteo_jamaicensis,"LACM 99676, LACM 99671, LACM 99673, LACM 99675, LACM 100268, CSULB 3473, CSULB 8062",54.97142857,34.58571429,other,other
Buteo_lagopus,"LACM 101392, LACM 112990, LACM 101502",54.1,35.33333333,other,other
Buteo_lineatus,"LACM 100388, LACM 100357, LACM 100240, CSULB 8112, CSULB 5303",44.16,30.98,other,other
Buteo_platypterus,CSULB 6145,40.2,36,other,other
Buteo_regalis,CSULB 7272,53.5,35.7,other,other
Cacatua_leadbeateri,"CSULB 7728, USNM 615001",45.65,16.35,other,other
Cacatua_roseicapilla,"USNM 621035, USNM 621034, USNM 612682",38.13333333,14.73333333,other,other
Callocephalon_fimbriatum,USNM 346840,39.9,15.6,other,other
Calypte_anna,"LACM 112202, LACM 112200, LACM 112201",10.36666667,5.566666667,hummingbirds,hummingbirds
Calypte_costae,"LACM 118354, LACM 112017, LACM 113366",9.266666667,5.266666667,hummingbirds,hummingbirds
Calyptorhynchus_banksii,USNM 431064,50.3,18.6,other,other
Camaroptera_brachyura,LACM 89438,16,8.1,other,passerines
Campylopterus_largipennis,"LACM108581, LACM 108513, LACM 108512",12.66666667,7.3,hummingbirds,hummingbirds
Campylopterus_villaviscensio,"LACM 108495, LACM108583",13.25,7.05,hummingbirds,hummingbirds
Campylorhynchus_brunneicapillus,"LACM 89370, LACM 118643, LACM 118644",23.46666667,11.26666667,other,passerines
Caprimulgus_batesi,"USNM 622983, USNM 622881, USNM 622984",25.36666667,17.96666667,other,other
Caprimulgus_carolinensis,"LACM 97469, LACM 89171, LACM 90541",27.86666667,18.4,other,other
Caprimulgus_cayennensis,"CSULB 7599, USNM 555699, USNM 621954, USNM 632382",21,13.775,other,other
Caprimulgus_europaeus,"USNM 603601, USNM 603602, USNM 603606",20.93333333,15.23333333,other,other
Caprimulgus_maculicaudus,USNM 623217,19.5,12.8,other,other
Caprimulgus_nigrescens,USNM 621718,19.8,13.3,other,other
Caprimulgus_parvulus,LACM 109995,20.8,13.1,other,other
Caprimulgus_rufigena,USNM 499379,20.6,15.5,other,other
Caprimulgus_vociferus,"USNM 432586, USNM 499488, USNM 553846",21.6,14.5,other,other
Caracara_plancus,CSULB 6338,52.8,28.1,other,other
Carduelis_chloris,"LACM 111769, LACM 111427",18.15,8.05,other,passerines
Cathartes_aura,"CSULB 4874, CSULB 4851",53.2,24.05,other,other
Cathartes_melambrotus,LACM 105651,53.4,26,other,other
Ceyx_pictus,LACM 118374,17.7,10.1,other,other
Chaetocercus_mulsant,LACM 108466,9.2,5.6,hummingbirds,hummingbirds
Chaetura_cinereiventris,LACM 105663,17.9,10.4,other,swifts
Chaetura_vauxi,LACM 106832,16.2,10.5,other,swifts
Chamaea_fasciata,"LACM 118765, LACM 118766, LACM 114727",18.83333333,9.366666667,other,passerines
Chauna_torquata,USNM 614547,52.1,25.2,other,other
Chloropsis_aurifrons,"LACM 112658, LACM 112659, LACM 89360",18.86666667,9.4,other,passerines
Chordeiles_acutipennis,"LACM 105288, LACM 105286, LACM 113347, CSULB 5043, CSULB 3873",20.54,13.9,other,other
Chordeiles_minor,"LACM 89168, LACM 87434, LACM 113349",22,15.56666667,other,other
Circus_cyaneus,CSULB 4909,44.4,28,other,other
Colibri_thalassinus,"LACM 89177, LACM 108501",11.05,6.45,hummingbirds,hummingbirds
Corapipo_leucorrhoa,"LACM 102405, LACM 108101, LACM 102404",16.26666667,8.733333333,other,passerines
Corvus_brachyrhynchos,LACM 87668,39.6,21.4,other,passerines
Corvus_corax,LACM 119652,46.2,25.7,other,passerines
Crypturellus_brevirostris,"USNM 625102, USNM 621695",28.95,16.85,other,other
Crypturellus_cinereus,"USNM 637158, USNM 637157",34.35,18.3,other,other
Crypturellus_cinnamomeus,"USNM 429117, USNM 429737",31.5,18.1,other,other
Crypturellus_parvirostris,USNM 612015,24.9,13.7,other,other
Crypturellus_soui,"USNM 428252, USNM 612255, USNM 613347",27,16.16666667,other,other
Crypturellus_undulatus,USNM 553127,35.7,18.9,other,other
Crypturellus_variegatus,USNM 621935,29.3,17.7,other,other
Cyanoramphus_novaezelandiae,CSULB 6417,26.6,11.7,other,other
Dendrocygna_guttata,USNM 560774,46.5,19.9,other,other
Dendrocygna_viduata,"USNM 614551, USNM 614550",44.85,19.85,other,other
Dendroica_petechia,"LACM 119157, LACM 119159, LACM 119156",15.16666667,7.533333333,other,passerines
Doryfera_ludovicae,"LACM 105666, LACM 108641",11.2,7,hummingbirds,hummingbirds
Dromaius_novaehollandiae,"USNM 500849, USNM 614474",74.35,33.15,other,other
Eclectus_roratus,CSULB 7233,42.3,17.9,other,other
Elanus_caeruleus,LACM 88897,37.1,25.6,other,other
Elanus_leucurus,LACM 100347,40,29,other,other
Eriocnemis_vestita,"LACM 108660, LACM 108659, LACM 108655",10.56666667,5.566666667,hummingbirds,hummingbirds
Eudromia_elegans,LACM 107113,29.8,16.3,other,other
Eulampis_jugularis,"LACM 100167, LACM 100171",14.05,6.7,hummingbirds,hummingbirds
Eurostopodus_macrotis,"USNM 560871, USNM 560871, USNM 613058",28.73333333,22.53333333,other,other
Eurypyga_helias,"LACM 90009, LACM 90010",29.15,16.35,other,other
Falco_columbarius,CSULB 7052,32.5,19,other,other
Falco_mexicanus,"LACM 5930, CSULB 5842",46.75,26.2,other,other
Falco_peregrinus,LACM 7979,47.5,24.1,other,other
Falco_sparverius,"LACM 100412, LACM 100413, LACM 100247",29.26666667,16.46666667,other,other
Falco_tinnunculus,"CSULB 7509, CSULB 7577",32.7,20,other,other
Gallus_gallus,Keck Teaching Collection,39.4,22.2,other,other
Glaucidium_brasilianum,"USNM 632375, USNM 490873, USNM 623113",27.2,14.76666667,other,other
Glaucidium_gnoma,CSULB 5656,27.5,14.1,other,other
Glaucidium_passerinum,"USNM 610395, USNM 610394, USNM 610392",25.76666667,12.3,other,other
Glaucidium_sjostedti,USNM 622876,32.9,20.7,other,other
Gymnoglaux_lawrencii,USNM 554287,28.5,17.5,other,other
Heliangelus_viola,"LACM 108472, LACM 108478, LACM 108508",10.96666667,5.766666667,hummingbirds,hummingbirds
Hemiprocne_mystacea,"USNM560828, USNM 560829",24.85,16.6,other,swifts
Hirundapus_caudacutus,"USNM 500799, USNM 500800, USNM 632245",27.16666667,16.03333333,other,swifts
Hirundo_rustica,"LACM 118617, LACM 118572, LACM 118573",16.8,9.5,other,swifts
Hydropsalis_torquata,"USNM 630184, USNM 635886",22.5,14.75,other,other
Icterus_bullockii,"LACM 89715, LACM 105358",21.65,10.57,other,passerines
Ketupa_zeylonensis,"LACM 107129, USNM 613844",53.7,34.6,other,other
Lesbia_nuna,"LACM 108727, LACM 108731, LACM 108729",9.666666667,5.066666667,hummingbirds,hummingbirds
Lurocalis_semitorquatus,LACM 105659,25.1,19.2,other,other
Megaceryle_alcyon,"LACM 119793, LACM 118367, LACM 118370",35.36666667,17.7,other,other
Megascops_asio,"CSULB 6401, CSULB 6611, CSULB 6402, CSULB  5643",34.975,21.3,other,other
Megascops_atricapilla,USNM 555942,32.5,19.3,other,other
Megascops_choliba,"USNM 631151, USNM 622380, USNM 562191",31.8,19.93333333,other,other
Megascops_clarkii,USNM 18957,32.9,20.4,other,other
Megascops_kennicottii,"CSULB 4666, USNM 621106, USNM 637702",35.83333333,22.1,other,other
Megascops_nudipes,"USNM 501799, USNM 501829, USNM 562457",32.66666667,20.33333333,other,other
Megascops_trichopsis,USNM 554125,30.7,18.9,other,other
Megascops_watsonii,"USNM 622354, USNM 562192, USNM 562193",33.53333333,21.5,other,other
Mellisuga_minima,UF 19832,8.84,5.53,hummingbirds,hummingbirds
Melospiza_melodia,"LACM 118941, LACM 118942",19.15,9.05,other,passerines
Metallura_tyrianthina,"LACM 108735, LACM 108734, LACM 108740",9.633333333,5.233333333,hummingbirds,hummingbirds
Micrastur_ruficollis,LACM 88923,36,19.7,other,other
Micrathene_whitneyi,CSULB  5413,24.3,13.2,other,other
Microhierax_caerulescens,"LACM 88925, LACM 88926",23.2,12.7,other,other
Milvago_chimachima,"LACM 107545, LACM 107546",38,21,other,other
Milvus_migrans,LACM 88900,44.8,27.4,other,other
Mimus_polyglottos,"LACM 118665, LACM 90554, LACM 115013",24.26666667,12.6,other,passerines
Myiopsitta_monachus,CSULB 5419,27.2,11,other,other
Nestor_meridionalis,USNM 18191,52.8,18.6,other,other
Nestor_notabilis,USNM 615000,49,18.2,other,other
Ninox_novaeseelandiae,"USNM 492457, USNM 612700",38.8,24.65,other,other
Ninox_philippensis,"USNM 613697, USNM 613697",31.6,19.6,other,other
Ninox_scutulata,"USNM 560815, USNM 560815",31.25,20,other,other
Ninox_variegata,"USNM 615018, USNM 615019, USNM 615018, USNM 615019",32.85,20.575,other,other
Nisaetus_cirrhatus,LACM 88917,60.7,38.8,other,other
Nothoprocta_ornata,USNM 620751,32.1,20.2,other,other
Nothoprocta_pentlandii,USNM 555676,25.5,16,other,other
Nothura_maculosa,"USNM 630224, USNM 614502, USNM 614500",26.1,15.33333333,other,other
Nyctibius_aethereus,USNM 621717,34.9,26,other,other
Nyctibius_grandis,USNM 623085,45.2,35.3,other,other
Nyctibius_griseus,"USNM 610497, USNM 557530, USNM 611744",37.33333333,27.73333333,other,other
Nyctidromus_albicollis,LACM 104933,22.9,13.5,other,other
Nyctiprogne_leucopyga,"USNM 632514, USNM 562194, USNM 562195",17.86666667,11.93333333,other,other
Nymphicus_hollandicus,"USNM 635040, CSULB 6979",25.15,11.85,other,other
Opisthocomus_hoazin,CSULB 4873,35.8,19.5,other,other
Orthotomus_ruficeps,"LACM 112652, LACM 112652",14.85,7.95,other,passerines
Otus_bakkamoena,"USNM 620395, USNM 562868",34.2,22.05,other,other
Otus_elegans,"USNM 560673, USNM 560674",31.05,19.3,other,other
Otus_magicus,"USNM 557175, USNM 557174, USNM 557179",33.16666667,20.93333333,other,other
Otus_scops,"USNM 553057, USNM 552940, USNM 553055",28.63333333,16.53333333,other,other
Pandion_haliaetus,CSULB 6103,44.3,29.3,other,other
Parabuteo_unicinctus,CSULB 5321,47.8,27.4,other,other
Passer_domesticus,"LACM 19448, LACM 119862",18.05,8.7,other,other
Phalaenoptilus_nuttallii,"LACM 113351, CSULB 3603, LACM 100284, LACM 113355, CSULB 3253",19.48,13.9,other,other
Picoides_pubescens,"LACM 118458, LACM 118459, LACM 118457",18.46666667,9.233333333,other,passerines
Platycercus_venustus,LACM 111069,27,11.5,other,other
Podager_nacunda,"USNM 622335, USNM 622257, USNM 635858",25.16666667,20.2,other,other
Podargus_papuensis,USNM 614956,42.6,33.9,other,other
Podargus_strigoides,"LACM 116082, CSULB 4867",33.1,24.85,other,other
Polihierax_semitorquatus,"CSULB 7587, CSULB 7654",26.45,14.75,other,other
Polytelis_anthopeplus,"LACM 88029, LACM 88028",31.65,14,other,other
Probosciger_aterrimus,USNM 615002,81.4,23.4,other,other
Psephotus_haematonotus,CSULB 5777,22.4,10.2,other,other
Psittacula_cyanocephala,"LACM 89127, LACM 89128",28.5,12,other,other
Psittacula_derbiana,LACM 106292,38.9,15,other,other
Psittaculirostris_desmarestii,LACM 106286,27.7,11.6,other,other
Psittaculirostris_edwardsii,CSULB 8025,28.2,12.2,other,other
Pulsatrix_perspicillata,"USNM 19798, USNM 637218",45.6,32.8,other,other
Regulus_calendula,"LACM 120681, LACM 120682, LACM 120921",14.13333333,7.3,other,passerines
Rhea_americana,"USNM 635725, USNM 635757, USNM 635758",79.36666667,47.73333333,other,other
Rhea_pennata,"CSULB 6545, USNM 347805, USNM 615093",62.53333333,37.63333333,other,other
Rhynchotus_rufescens,"USNM 631129, USNM 612017",35.65,21.85,other,other
Rhynochetos_jubatus,USNM 612087,52.4,28.4,other,other
Sagittarius_serpentarius,CSULB 4806,72.7,47.5,other,other
Sayornis_nigricans,"LACM 114494, LACM 120399, LACM 111242",17.5,9.8,other,passerines
Schistes_geoffroyi,"LACM 108762, LACM 108761, LACM 108763",10.6,5.733333333,hummingbirds,hummingbirds
Selasphorus_rufus,"LACM 115733, LACM 113367, LACM 115734",9.633333333,5.466666667,hummingbirds,hummingbirds
Selasphorus_sasin,"LACM 118357, LACM 120437, LACM 120442",9.6,5.333333333,hummingbirds,hummingbirds
Sitta_pygmaea,"LACM 106122, LACM 103514, LACM 103515",16.13333333,6.866666667,other,passerines
Steatornis_caripensis,LACM 105656,36.1,20.1,other,other
Stelgidopteryx_serripennis,"LACM 106833, LACM 89349, LACM 115791",16.16666667,9.066666667,other,passerines
Stellula_calliope,"LACM 112014, LACM 111632",8.95,4.8,hummingbirds,hummingbirds
Streptoprocne_rutila,LACM 105661,17.5,13,other,swifts
Streptoprocne_zonaris,LACM 105660,25.8,14.8,other,swifts
Strigops_habroptila,USNM 018275,50,17.4,other,other
Strix_aluco,"CSULB 7582, CSULB 7581, USNM 621335",44,26.13333333,other,other
Strix_nebulosa,"USNM 19313, USNM 610411",48.1,25.3,other,other
Strix_nigrolineata,"USNM 613368, USNM 562545, USNM 613976",43.23333333,25.93333333,other,other
Strix_occidentalis,"USNM 223672, USNM 223671",47.1,29.7,other,other
Strix_uralensis,"USNM 610401, USNM 610403, USNM 610405",47.3,25.5,other,other
Strix_varia,"USNM 553902, USNM 19043, USNM 18961",45.46666667,26.26666667,other,other
Strix_virgata,USNM 635053,39.1,25.6,other,other
Struthio_camelus,"CSULB 6140, CSULB 6314, CSULB 6311, CSULB 6138, CSULB 6139, CSULB 6159, USNM 504006, USNM 553658, CSULB 6312",49.36666667,31.93333333,other,other
Surnia_ulula,"USNM 610390, USNM 622484, USNM 610387, USNM 290337",40.125,21.35,other,other
Tachornis_squamata,LACM 105665,14.1,9.9,other,swifts
Tachymarptis_melba,LACM 90543,24.6,15.5,other,swifts
Tanygnathus_lucionensis,LACM 101667,36.9,15.6,other,other
Thalurania_furcata,LACM 105673,12.3,6.6,hummingbirds,hummingbirds
Tinamus_major,"USNM 621934, USNM 621693, USNM 621694",37.16666667,22.1,other,other
Turdus_migratorius,"LACM 118762, LACM 118755, LACM 113457",25.93333333,14,other,passerines
Tyto_alba,"LACM 113304, CSULB 4663, CSULB 6546, CSULB 6907",38.525,18.55,other,other
Vireo_huttoni,"LACM 89705, LACM 103533",17.7,9.65,other,passerines