- Gabar Goshawk
- Gambaga Flycatcher
- Gambel's Quail
- Garganey
- Giant Coua
- Giant Cowbird
- Giant Kingfisher
- Glossy Ibis
- Goldcrest
- Golden-backed Weaver
- Golden-breasted Bunting
- Golden-breasted Starling
- Golden-browed Chlorophonia
- Golden-hooded Tanager
- Golden-tailed Woodpecker
- Golden Palm Weaver
- Golden Pipit
- Goliath Heron
- Grasshopper Buzzard
- Great-tailed Grackle
- Great Black-backed Gull
- Great Blue Heron
- Great Cormorant
- Great Crested Grebe
- Great Curassow
- Great Egret
- Great Grey Shrike
- Great Kiskadee
- Great Sparrow
- Great Spotted Cuckoo
- Great Spotted Woodpecker
- Great Tit
- Great White Pelican
- Greater Blue-eared Starling
- Greater Crested Tern
- Greater Flamingo
- Greater Kestrel
- Greater Painted-snipe
- Greater Sand Plover
- Greater Short-toed Lark
- Greater Striped Swallow
- Green-crowned Brilliant
- Green-tailed Towhee
- Green-winged Pytilia
- Green Hermit
- Green Heron
- Green Honeycreeper
- Green Kingfisher
- Green Sandpiper
- Green Thorntail
- Green Wood Hoopoe
- Grey-backed Camaroptera
- Grey-backed Fiscal
- Grey-backed Sparrow-Lark
- Grey-capped Flycatcher
- Grey-capped Social Weaver
- Grey-capped Warbler
- Grey-headed Bushshrike
- Grey-headed Chachalaca
- Grey-headed Gull
- Grey-headed Kingfisher
- Grey-headed Lovebird
- Grey-necked Wood Rail
- Grey-tailed Mountaingem
- Grey Crowned Crane
- Grey Go-away-bird
- Grey Hawk
- Grey Heron
- Grey Plover
- Grey Wagtail
- Grey Wren-Warbler
- Greylag Goose
- Griffon Vulture
- Groove-billed Ani
- Groundscraper Thrush
- Guianan Trogon