- Gadwall
- Gambel's Quail
- Gila Woodpecker
- Glossy Ibis
- Golden-fronted Woodpecker
- Golden Eagle
- Great-tailed Grackle
- Great Black-backed Gull
- Great Blue Heron
- Great Crested Flycatcher
- Great Egret
- Great Grey Owl
- Great Horned Owl
- Great Kiskadee
- Great Shearwater
- Greater Roadrunner
- Greater Scaup
- Greater Yellowlegs
- Green-crowned Brilliant
- Green-winged Teal
- Green Heron
- Grey-headed Chachalaca
- Grey Catbird
- Grey Partridge
- Grey Plover
- Greylag Goose
- Groove-billed Ani