{"schema_version":"bf_book_companion_v1","release_id":"20261010T034321Z-reviewed-full-unique-works","book":{"amazon_purchase_url":"https://www.amazon.com/dp/1476794561?tag=bookfrontie00-20","asin":"1476794561","authors":["Bernd Heinrich"],"book_id":"9781476794563","canonical_url":"https://bookfrontier.com/books/ravens-in-winter-9781476794563","cover_image_url":"https://img.bookfrontier.com/9781476794563.jpg?v=dcafd2ab5f48c6e4","description":"“One of the most interesting discoveries I’ve seen in animal sociobiology in years.” — E.O. Wilson Why do ravens, often considered solitary birds, share food with one another in the harsh months of winter? At first glance, the behavior seemed to defy the rules of evolutionary biology. Yet the more biologist Bernd Heinrich observed these intelligent corvids, the more fascinating the puzzle became. In Ravens in Winter , Heinrich presents the groundbreaking ornithological research that redefined our understanding of raven social behavior. 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