The book "Birds of a Feather" was written by the outstanding American writer Robert Silverberg. This is a science fiction novel that tells the story of humanity in the distant future, when people have come into contact with other civilizations through space-time and other portals. In his book, the author explores the topic of the interaction of different races, advocates the idea of peace and understanding between them. "Birds of a Feather" is an exciting read for fans of science fiction, where every event and every character is filled with unexpected twists and deep philosophical meaning.