| Common Name | Scientific name |
|---|---|
| Gray Trembler | Cinclocerthia gutturalis |
| Gray Vireo | Vireo vicinior |
| Gray-and-gold Tanager | Tangara palmeri |
| Gray-backed Tern | Onychoprion lunatus |
| Gray-barred Wren | Campylorhynchus megalopterus |
| Gray-bellied Hawk | Accipiter poliogaster |
| Gray-breasted Crake | Laterallus exilis |
| Gray-breasted Martin | Progne chalybea |
| Gray-breasted Wood-Wren | Henicorhina leucophrys |
| Gray-breasted Woodpecker | Melanerpes hypopolius |
| Gray-capped Flycatcher | Myiozetetes granadensis |
| Gray-cheeked Nunlet | Nonnula frontalis |
| Gray-cheeked Thrush | Catharus minimus |
| Gray-chested Dove | Leptotila cassinii |
| Gray-collared Becard | Pachyramphus major |
| Gray-cowled Wood-Rail | Aramides cajaneus |
| Gray-crowned Palm-Tanager | Phaenicophilus poliocephalus |
| Gray-crowned Rosy-Finch | Leucosticte tephrocotis |
| Gray-crowned Woodpecker | Colaptes auricularis |
| Gray-crowned Yellowthroat | Geothlypis poliocephala |
| Gray-fronted Quail-Dove | Geotrygon caniceps |
| Gray-headed Chachalaca | Ortalis cinereiceps |
| Gray-headed Chickadee | Poecile cinctus |
| Gray-headed Dove | Leptotila plumbeiceps |
| Gray-headed Kite | Leptodon cayanensis |
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