Sparrow, Eagle, Penguin, and Seagull: What Is a Bird? (Animal Groups Are Categorical)

What is a bird? Parrots, bluebirds, ostriches, and many other creatures are all birds! Clever rhymes from Brian P. Cleary and comical illustrations from Martin Goneau explain the traits that all birds have in common and help you determine which creatures belong in this feathered group. Animal names are printed in color for easy identification, and the goofy CATegorical cats make learning fun!