Ettlinger Richard:
On Feathered Wings
Birds In Flight
Harry N. Abrams, Inc. (United States), 2008
Hardback, 192 pages
Size: 292x267 mm
ISBN: 9780810995253
ISBN-10: 0810995255
Price: $40.00
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Customers from United Kingdom please go to BooksRush.co.uk. All other customers should visit Eruditor.com.
Not in a hurry? There is a cheaper option on Eruditor.com.
On Feathered Wings
The most intrepid flyers among the birds are the long distance migrators and the birds of prey. These creatures are built for endurance or speed. Most birds can do in the air almost anything they can do at rest, including eating and sleeping. This title explains the basics of bird flight: from how they do it to how it evolved.

