- Galapagos Dove
- Galapagos Hawk
- Galapagos Mockingbird
- Galapagos Penguin
- Gentoo Penguin
- Giant Hummingbird
- Glaucous Gull
- Glossy Ibis
- Golden Tanager
- Goliath Heron
- Great-tailed Grackle
- Great Black-backed Gull
- Great Blue Heron
- Great Bustard
- Great Cormorant
- Great Crested Grebe
- Great Egret
- Great Frigatebird
- Great Grebe
- Great Horned Owl
- Great Kiskadee
- Great Potoo
- Great Reed Warbler
- Great Spotted Woodpecker
- Great Thrush
- Great Tit
- Great White Pelican
- Greater Blue-eared Starling
- Greater Crested Tern
- Greater Double-collared Sunbird
- Greater Flamingo
- Greater Rhea
- Green-and-rufous Kingfisher
- Green Heron
- Green Honeycreeper
- Green Kingfisher
- Green White-eye
- Grey-cowled Wood Rail
- Grey-headed Fish Eagle
- Grey-headed Gull
- Grey-headed Kingfisher
- Grey-headed Woodpecker
- Grey-hooded Sierra Finch
- Grey Crowned Crane
- Grey Heron
- Greylag Goose
- Groove-billed Ani
- Guira Cuckoo