Which birds of the order Cuculiformes often lay their eggs in the nests of other species?
Correct answer: Cuckoos

Player Elf Counsel
BrilliantSkin7, Hence the expression A cuckoo in the nest. Meaning one who doesn't fit in.

quicksilver
Player Elf Counsel, also the term cuckold

little b
i don't like cuckoo's

caliro
cowbirds lay their eggs in other birds nests too.

Bonnie
Mockingbirds will Siri do that.

AngelicQuetzalcoatl5
I'm entertained