Definition that contains koo
- cuckoo repeat monotonously, like a cuckoo repeats his call
- ani black tropical American cuckoo
- green dragon European arum resembling the cuckoopint
- dragon arum European arum resembling the cuckoopint
- black-billed cuckoo North American cuckoo; builds a nest and rears its own young
- cuculiformes cuckoos; touracos; etc.
- european cuckoo common cuckoo of Europe having a distinctive two-note call; lays eggs in the nests of other birds
- order cuculiformes cuckoos; touracos; etc.
- 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