FALCONING. CIRCUS. 
19 
spotted with white, the tail with four dark brown bars ; lower parts 
white, each feather with a longitudinal narrow, oblong, brown spot. 
Miniature of Falco Cooperii, and intimately allied to Astur Nisus. 
Male, ll;j, 20^. Female, 14, 26. 
Generally distributed. Not very abundant. Migratory. 
Slate-coloured Hawk, Falco Pennsylvanicus, Wils. Amer. Ornith. v. vi. p, 13. 
Adult Male. 
Sharp-shinned Hawk, Falco velox, Wils. Amer. Ornith. v. vi. p. 116. Young 
Female. 
Falco velox. Bo nap. Syn. p. 29. 
Falco fuscus, Bonap. Syn. Append, p. 433. 
Accipiter Pennsylvanicus, Slate-coloured Hawk, Swains. & Rich. F. Bor. Amer. 
V. ii. p. 44. 
American Brown or Slate-coloured Hawk, Nctt. Man. v. ii. p.^87. 
Sharp-shinned or Slate-coloured Hawk, Falco fuscus, Acd. Amer. Om. v. iv. p. 522. 
Adult. 
GENUS XI. emeus, Bechst. HARRIER. 
Bill short, compressed ; upper mandible with, the dorsal 
line sloping to beyond the cere, then decurved, the sides 
sloping, the edge with a festoon a little anterior to the 
nostril, the tip acute ; lower mandible with the dorsal line 
ascending and convex, the tip rounded. Nostrils large, 
ovato-oblong, with an obhque ridge from their upper edge. 
Head of moderate size, oblong, neck rather short ; body 
slender. Legs long and slender ; tarsi long, compressed, 
anteriorly and posteriorly scutellate ; toes slender, scutellate 
unless at the base ; claws long, compressed, moderately 
curved, flat beneath, acuminate. Plumage very soft ; a dis- 
tinct ruff of narrow feathers from behind the eye on each 
side to the chin, the aperture of the ear being very large. 
Wings long, much rounded, the fourth quill longest ; outer 
four quills with their inner webs sinuate. Tail straight, long, 
slightly rounded. Quills and tail-feathers covered with vel- 
vety down. 
26. 1. Circus cyaneus, Linn. Common Harrier. 
Plate CCCLVI. Fig. 1. Male. Fig. 2. Female. Fig. 3. Young. 
Adult male light ash-grey ; abdomen, tail- coverts, lower wing- 
coverts, inner webs of secondary quills and tail-feathers, white, prima- 
ries black toward the end. Female umber-brown above, head, hind 
neck and scapulars, streaked with light red ; tail- coverts white ; tail 
