NT
Chuck-will’s-widow
Antrostomus carolinensis
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10,825 species profiles with photos, identification notes, voice, range and the best places to see them. Taxonomy follows AviList.
10,825 birds
NT 
LC
Chukar Partridge
Alectoris chukar
LC
Churring Cisticola
Cisticola njombe
LC
Chusquea Tapaculo
Scytalopus parkeri
LC
Chuuk Flycatcher
Myiagra oceanica
Endemic to Micronesia
EN
Chuuk Monarch
Metabolus rugensis
Endemic to Micronesia
LC
Cinderella Waxbill
Glaucestrilda thomensis
LC
Cinereous Antshrike
Thamnomanes caesius
LC
Cinereous Becard
Pachyramphus rufus
NE
Cinereous Bulbul
Hemixos cinereus
NT
Cinereous Bunting
Emberiza cineracea
LC
Cinereous Conebill
Conirostrum cinereum
LC
Cinereous Finch
Piezorina cinerea
Endemic to Peru
LC
Cinereous Ground Tyrant
Muscisaxicola cinereus
LC
Cinereous Harrier
Circus cinereus
LC
Cinereous Mourner
Laniocera hypopyrra
NE
Cinereous Owl
Strix sartorii
Endemic to Mexico
LC
Cinereous Tinamou
Crypturellus cinereus
NE
Cinereous Tit
Parus cinereus
LC
Cinereous Tyrant
Knipolegus striaticeps
NT
Cinereous Vulture
Aegypius monachus
LC
Cinereous Warbling Finch
Microspingus cinereus
Endemic to Brazil
LC
Cinereous-breasted Spinetail
Synallaxis hypospodia
LC
Cinnabar Boobook
Ninox ios
Endemic to Indonesia