This book is a joyous introduction to the exciting world of North American birds as seen through the eyes and ears of almost every significant naturalist from Columbus's time to the present.Contrary to a prevalent impression, for their weight or wing length hummingbirds beat their wings less rather than more rapidly than other birds do. The giant hummingbird flaps only eight or ten times per second, whereas the much largeranbsp;...
|Title||:||Treasury of North American Birdlore|
|Author||:||Paul S. Eriksson, Alan Pistorius|
|Publisher||:||Paul s Eriksson - 1994-10-01|