- Jabiru
- Jackal Buzzard
- Jackson's Hornbill
- Jackson's Spurfowl
- Jackson's Widowbird
- Jacky Winter
- Jacobin Cuckoo
- Jamaican Becard
- Jamaican Blackbird
- Jamaican Crow
- Jamaican Elaenia
- Jamaican Euphonia
- Jamaican Lizard Cuckoo
- Jamaican Mango
- Jamaican Oriole
- Jamaican Owl
- Jamaican Pewee
- Jamaican Spindalis
- Jamaican Tody
- Jamaican Vireo
- Jamaican Woodpecker
- James's Flamingo
- Jameson's Firefinch
- Jameson's Wattle-eye
- Japanese Tit
- Java Sparrow
- Javan Banded Pitta
- Javan Bulbul
- Javan Bush Warbler
- Javan Kingfisher
- Javan Munia
- Javan Myna
- Javan Plover
- Javan Pond Heron
- Javan Scimitar Babbler
- Javan Whistling Thrush
- Jerdon's Babbler
- Jerdon's Bush Lark
- Jerdon's Leafbird
- Jerdon's Nightjar
- Jet Antbird
- Johanna's Sunbird
- Jonquil Parrot
- Joyful Greenbul
- Jungle Babbler
- Jungle Myna
- Jungle Nightjar
- Jungle Owlet
- Jungle Prinia
- Junin Antpitta
- Junin Canastero
- Junin Grebe
- Juniper Titmouse