The book is dedicated to one of the most interesting and mysterious problems of ornithology - the problem of loyalty of migratory birds to their homeland and home. The feeling of “home loyalty” is inherent in a wide variety of animals - from insects to primates, including humans. This feeling has an instinctive basis and manifests itself in the individual in the desire to return home - to a place familiar to it after a temporary absence. For migratory birds, “home” can mean a place of birth, nesting, wintering. For readers interested in problems of biology and ornithology, as well as for nature lovers.