Page:Natural History, Birds.djvu/23

10 attachment to the muscles of the wings, which are long and powerful. Hence the flight of these birds is usually vigorous, lofty, and long sustained.



Contrary to what usually prevails among birds, the females in this order are one-third larger than the males. Their eggs are generally pure white, free from spots.

The Accipitres are found in every part of the world. They comprise three well-marked Families, Vulturidæ, Falconidæ, and Strigidæ.