num_pages: 400
description: Why should ravens--which are usually solitary birds--share valuable food in the dead of winter? How clever are these birds? Do they have a language? These are some of the riddles that noted sociobiologist Bernd Heinrich, author of Bumblebee Economics and winner of the John Burroughs Medal, explores in this intriguing book. 16 pages of drawings.Design by Louise Fili.
language: English
title: Ravens in Winter
titlecomplete: Ravens in Winter
genres: Birds, Nature, Science Nature, Biology, Environment, Animals, Science, Ornithology, Nonfiction, Natural History
ratings_count: 968
publisher: Vintage