browed
dark-browed

dark
dark blue

Dark Batis
Batis crypta

Dark Chanting Goshawk
Melierax metabates

Dark Hawk-Cuckoo
Hierococcyx bocki

Dark Newtonia
Newtonia amphichroa

Dark Pewee
Contopus lugubris

dark-adapted
com visão noturna

Dark-backed Sibia
Heterophasia melanoleuca

Dark-backed Weaver
Ploceus bicolor

Dark-bellied Cinclodes
Cinclodes patagonicus

Dark-billed Cuckoo
Coccyzus melacoryphus

Dark-breasted Rosefinch
Procarduelis nipalensis

Dark-breasted Spinetail
Synallaxis albigularis

Dark-capped Bulbul
Pycnonotus tricolor

Dark-eared Myza
Myza celebensis

Dark-eyed Junco
Junco hyemalis

Dark-fronted Babbler
Dumetia atriceps

Dark-necked Tailorbird
Orthotomus atrogularis

Dark-rumped Rosefinch
Carpodacus edwardsii

Dark-rumped Swift
Apus acuticauda

Dark-sided Flycatcher
Muscicapa sibirica

Dark-sided Thrush
Zoothera marginata

dark-skinned
moreno

Dark-throated Oriole
Oriolus xanthonotus

Dark-throated Seedeater
Sporophila ruficollis

Dark-winged Canastero
Asthenes arequipae

Dark-winged Miner
Geositta saxicolina

Dark-winged Trumpeter
Psophia viridis