- Kaempfer's Woodpecker
- Kai Besar White-eye
- Kai Coucal
- Kai Kecil White-eye
- Kai Monarch
- Kalao Blue Flycatcher
- Kandt's Waxbill
- Karamoja Apalis
- Karoo Long-billed Lark
- Katanga Masked Weaver
- Kawall's Amazon
- Kelp Goose
- Kenrick's Starling
- Kenya Sparrow
- Key West Quail-Dove
- Kikuyu Mountain Greenbul
- Kikuyu White-eye
- Kilifi Weaver
- King Bird-of-paradise
- Knysna Turaco
- Koepcke's Screech Owl
- Koklass Pheasant
- Kozlov's Accentor