- Gabar Goshawk
- Giant Cowbird
- Giant Kingfisher
- Glittering-throated Emerald
- Glossy Ibis
- Golden-backed Weaver
- Golden-spangled Piculet
- Golden-winged Parakeet
- Grassland Sparrow
- Great Black-backed Gull
- Great Black Hawk
- Great Cormorant
- Great Egret
- Great Grey Shrike
- Great Kiskadee
- Great Spotted Cuckoo
- Great Tit
- Great White Pelican
- Greater Ani
- Greater Blue-eared Starling
- Greater Crested Tern
- Greater Flamingo
- Greater Kestrel
- Greater Painted-snipe
- Greater Short-toed Lark
- Greater Yellow-headed Vulture
- Greater Yellowlegs
- Green-backed Trogon
- Green-rumped Parrotlet
- Green-tailed Goldenthroat
- Green-throated Carib
- Green Aracari
- Green Kingfisher
- Green Oropendola
- Grey-backed Camaroptera
- Grey-backed Fiscal
- Grey-breasted Martin
- Grey-cowled Wood Rail
- Grey-headed Bushshrike
- Grey-headed Gull
- Grey-headed Kite
- Grey-headed Lovebird
- Grey-lined Hawk
- Grey Crowned Crane
- Grey Heron
- Grey Kingbird
- Grey Plover
- Griffon Vulture
- Guianan Cock-of-the-rock
- Guianan Puffbird
- Guianan Warbling Antbird
- Gull-billed Tern