Feathers 27 
or kingfisher is a curious-looking object, most of the 
bird’s body seeming to be tiled with small, bluish sticks. 
Fic. 14.—Tip of feather from the crown of a young Song Sparrow, showing 
connection with down. Magnified 25 diameters. 
Fic. 15.—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. 
