Feathers 



27 



or kingfisher is a curious-looking object, most of the 

 bird's body seeming to be tiled with small, bluish sticks. 



Fig. 14. — Tip of feather from the crown of a young Song Sparrow, showing 

 connection with down. Magnified 25 diameters. 



Fig. 1.1. — Duck Hawk moulting into juvenal plumage, with the natal down coming 

 away in shreds and tatters. 1/4 natural size. 



When the folds of the developing feathers are sufficiently 

 dry, they burst their sheaths and rapidly spread out. 



