Pheasant chicks only know their mother but phalaropes are incubated and raised mainly by their fathers, a monarch butterfly never sees either parent, bobwhite quail chicks live with both, cowbirds are raised by foster parents. . . . In the manner of their When Animals Are Babies (KR, 1964) and When Water Animals Are Babies (KR, 1970) the Schwartzes introduce the young of 27 species, with no generalizing introduction or conclusion but with enough parallels and variations to keep children listening and looking through the one short paragraph and functional, softly colored picture per family.