- Gadwall
- Galah
- Garden Warbler
- Garganey
- Giant Hummingbird
- Giant Wood Rail
- Glossy Ibis
- Goldcrest
- Golden-collared Macaw
- Golden Grosbeak
- Goliath Heron
- Great Black-backed Gull
- Great Blue Heron
- Great Cormorant
- Great Crested Grebe
- Great Egret
- Great Grebe
- Great Green Macaw
- Great Kiskadee
- Great Skua
- Great Spotted Woodpecker
- Great Tit
- Greater Crested Tern
- Greater Flamingo
- Greater Scaup
- Greater White-fronted Goose
- Greater Yellowlegs
- Green-backed Firecrown
- Green-throated Carib
- Green-winged Teal
- Green Heron
- Green Sandpiper
- Greenish Yellow Finch
- Grey-hooded Sierra Finch
- Grey Catbird
- Grey Crowned Crane
- Grey Gull
- Grey Heron
- Grey Kingbird
- Grey Parrot
- Grey Partridge
- Grey Plover
- Grey Wagtail
- Greylag Goose
- Griffon Vulture
- Guadeloupe Woodpecker
- Gyrfalcon