cuckoos

n.

布谷鸟，杜鹃( cuckoo的名词复数 )；

cuckoo clock布谷鸟钟（报时似布谷鸟叫声的钟）

1. The cuckoo is the herald of the spring.
   杜鹃报春。
2. The cuckoo lays its eggs in other birds' nests.
   杜鹃在别的鸟巢中产卵。
3. Germany is famous for its cuckoo clocks.
   德国以它的咕咕钟著名。

1. Hey! Don't be calling me cuckoo in the head!
   嘿!不要说我不正常!
2. He has gone absolutely cuckoo .
   他简直疯了。

Cuckoos, Cowbirds and Other Cheats
Cuckoos, Cowbirds and Other Cheats
Cuckoos, Cowbirds and Other Cheats
Cuckoos versus reed warblers: Adaptations and counteradaptations
Cuckoos, cowbirds and hosts: adaptations, trade-offs and constraints.
How do cuckoos find their hosts? The role of habitat imprinting ☆
Aggression to dummy cuckoos by potential European cuckoo hosts
Egg mimicry by cuckoos Cuculus canorus in relation to discrimination by hosts
Nestling cuckoos, Cuculus canorus, exploit hosts with begging calls that mimic a brood
Costs to host defence and the persistence of parasitic cuckoos.