Owls
Subtitle: The Silent Flyers
Edition: Revised Edition edition
Publisher: Firefly Books
Published: March 3, 2001
Language: eng
Format: Hardcover
Number of pages: 176
ISBN-13: 9781552091463
Subjects: Individual Species Of Birds; Nature; Nature/Ecology; Birds & Birdwatching - General; Nature / Birds & Birdwatching; Owls
First sentence: Although a highly controversial issue, some believe that the earliest known bird is Proto avis, which was discovered in 1986 among 225-million-year-old Upper Triasic rocks.