A fine introduction to ornithology for young bird spyers and egg and nest collectors. Not a handbook but a leisurely investigation of the unique physiology and habits of birds. The reader will be impressed by the fact that in nature form certainly follows function as the author discusses flying apparatus, kinds of feet, beaks, etc. Eating, mating, nest-building, and teaching habits are also discussed in detail with brief references to different kinds of birds. But the emphasis is on birds as a whole, and a closing chapter urges the reader to continue his interest in birds for instruction and fun with specific suggestions for joining clubs, doing a little extra-curricular bird watching.