Amazon.com description: Product Description: Male warblers grow colorful feathers during the spring mating season. Male moose compete for a female by head-butting each other with their antlers. Female ospreys are fed and protected by their mates while they hatch their eggs. Whether it's to attract, fight for or protect a mate, animals interact in some remarkable ways. Using concise language and realistic illustrations, this title in the Animal Behavior series takes a resourceful approach to exploring animal life.