FIELD KEY TO THE LAND BIRDS. 13 
19. BALD EAGLE. AHaliaetus leucocephalus. 
Length, 35 inches. Black; head, neck, and tail white ; 
bill and feet yellow. Young entirely black. The 
Bald Eagle is sometimes to be seen high in the air, 
sailing above a hunting Fish-hawk, and waiting to rob 
him of his fish. 
20. GOLDEN EAGLE. Aguila chrysaetos. — 
Length, 35 inches. Top of head and back of neck 
rich yellow-brown; body dark brown. A Rocky 
Mountain bird, rare to the East. 
SWAINSON’S HAWK, similar to the Red-tail, 
sometimes strageles to the East. He may be known 
by a large red or brown patch on the breast. 
The white, the gray, and the black Gyrtfalcons, 
Northern birds, have been known to stray to the East- 
ern United States. 
OWLS. 
(> whe GREAT HORNED OWL. 
Ay Bubo virginianus. — Length, 22 
CS a ay, ! : \ oP es 
(-~7 ~/ # inches. Gray and brown above; 
rey 8 white or buff underneath; every- 
ed ~ where spotted and barred with black. 
Wn. 
jrry* s This owl is a bird of great strength, 
; and lives in wooded districts, prey- 
ing on rabbits and poultry. It stays 
with us summer and winter. 
22. LONG-EARED OWL. © Asio wilsonianus. 
— Length, 14 inches. Resembles the Great Horned 
Owl in everything except size. This and the next 
species are our commonest owls, and are often seen at 
evening hunting over the meadows. This species 
differs from the ext by having longer ears and barred 
breast-feathers. 
23. SHORT-EARED OWL.  Asio accipitrinus. 
— Length, 15 inches. Upper parts buff and gray, 
speckled with dark brown ; underparts buff, streaked 
with black, not barred ; ears small. This owl feeds in 
