Definition that contains koo
- cuckoo repeat monotonously, like a cuckoo repeats his call
- ani black tropical American cuckoo
- order cuculiformes cuckoos; touracos; etc.
- european cuckoo common cuckoo of Europe having a distinctive two-note call; lays eggs in the nests of other birds
- coccyzus erythropthalmus North American cuckoo; builds a nest and rears its own young
- cuculus canorus common cuckoo of Europe having a distinctive two-note call; lays eggs in the nests of other birds
- coucal Old World ground-living cuckoo having a long dagger-like hind claw
- cuckoo clock clock that announces the hours with a sound like the call of the cuckoo
- dracunculus vulgaris European arum resembling the cuckoopint
- family cuculidae includes cuckoo; ani; roadrunner