Owls are among the few birds to have these on the front of their heads
Don't kick an adult male of these duck-billed creatures in the ankle; he's got a poisoned spur
Part of the witches' brew recipe in "Macbeth" was a pinch of this amphibian's eye
A group of vipers, even if the snakes don't live in a bird's dwelling
Kangaroos, monkeys & Boy Scouts all come in these groups
The male young of these are called cockerels; the female young, pullets
Though not noted for their musical skills, a group of gorillas is called this
A young rat, seal, or, so we're told, dragon
A young kangaroo, or a musical pal
A general term for the young of most fish, or how you cook them after you catch them