On feathered wings
Auteur :
Ettlinger, Richard
Éditeur :
Abrams
ISBN :
9780810995253
Date de publication :
1 mai 2008
Dimensions :
29,8 x 27,6 x 2,0 cm
Poids :
1450 g
Langue :
Anglais
Pays d'origine :
USA
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.