The book "Our Flying Friends" by Elizabeth and Joseph Grinnell is an exciting journey into the world of birds. The authors talk in detail about a variety of birds, from small hummingbirds to huge eagles. They share interesting facts about the behavior, life and customs of different species of birds, as well as about their interaction with the environment. The book contains color illustrations that make reading even more interesting and exciting. "Our feathered friends" will help you deepen your knowledge about the world of birds and tell you how to preserve their natural habitats for future generations.