How birds migrate
By: Paul Kerlinger ; illustrated by Pat Archer.
Edition: 1st ed.
Publisher: Stackpole Books
Published: 1995
Place of publication: Mechanicsburg, PA
Language: eng
Format: Paperback
Number of pages: 228
ISBN-13: 9780811724449
Subjects: Birds -- Migration.
Description: Why do some birds migrate at night and others travel during the day? How do birds that have never migrated befor know when to leave and where to go? How does a tiny warbler cross 2,000 miles of ocean in a nonstop flight lasting more than two days? The mysteries of migration have puzzled birders and prompted scientific inquiry for years.

Uncovers the mysteries of bird migration, including such topics as how migrating birds find their way and how seabirds fuel themselves for annual round-trips of 18,000 miles.
Notes: Includes bibliographical references (p. 217-224) and index.
Table of contents: title: The reason birds migrate; title: How scientists study migration; title: The basics of bird flight; title: Up in the air; title: The travel seasons; title: By day or by night?; title: Barriers to migration; title: Migratory rest stops; title: Flight speed and distance; title: Finding the way; title: How high birds fly; title: Flocking behavior during migration; title: The calls of migrating birds; title: Flight strategies; title: Conservation of migrating birds; title: Recommended resources