- Gadwall
- Garden Sunbird
- Garganey
- Giant Cowbird
- Glossy Ibis
- Glossy Swiftlet
- Goldcrest
- Golden Pheasant
- Graceful Prinia
- Great-tailed Grackle
- Great Black-backed Gull
- Great Blue Heron
- Great Cormorant
- Great Crested Grebe
- Great Curassow
- Great Egret
- Great Frigatebird
- Great Grey Shrike
- Great Kiskadee
- Great Myna
- Great Shearwater
- Great Skua
- Great Spotted Woodpecker
- Great Spotted Woodpecker (canariensis)
- Great Tit
- Great White Pelican
- Greater Antillean Bullfinch
- Greater Antillean Grackle
- Greater Coucal
- Greater Crested Tern
- Greater Flamingo
- Greater Sand Plover
- Greater Scaup
- Greater White-fronted Goose
- Greater Yellowlegs
- Green-headed Sunbird
- Green-throated Carib
- Green Heron
- Green Hylia
- Green Ibis
- Green Imperial Pigeon
- Green Sandpiper
- Green Wood Hoopoe
- Grenada Flycatcher
- Grey-backed Camaroptera
- Grey-breasted Martin
- Grey-capped Flycatcher
- Grey-headed Gull
- Grey-headed Kingfisher
- Grey-headed Swamphen
- Grey-rumped Treeswift
- Grey Crowned Crane
- Grey Francolin
- Grey Go-away-bird
- Grey Heron
- Grey Kestrel
- Grey Kingbird
- Grey Plover
- Grey Wagtail
- Greylag Goose
- Guadeloupe Woodpecker
- Gull-billed Tern