Answer:

ostriches

Answer	Crossword Clue
OSTRICHES	Emu look-alikes
OSTRICHES	Africa's fastest-running bipeds
OSTRICHES	Feigns not to see.

OSTRICHES	Sources of plumes
OSTRICHES	Head hiders
OSTRICHES	Big egg producers
OSTRICHES	Emus' kin
OSTRICHES	Largest birds