egular occurrence at all seasons.
N. Ohio, tolerably common P.R. SE. Minn., P.R.,
becoming rare.
An adult Bald Eagle will at once be recognized by its white head and
tail; the immature birds by their large size. Eagles are usually found
near the water where fish may be obtained either on the shore or from
the Osprey. The call of the male is a human-like, loud, clear
_cac-cac-cac_; that of the female is said to be more harsh and often
broken. Eagles nest in tall trees and on cliffs, and lay two or three
dull white eggs, in Florida, in November and December; in Maine, in
April.
FALCONS, CARACARAS, ETC. FAMILY FALCONIDAE
GYRFALCON
_Falco rusticolus gyrfalco_
A large Hawk with long, pointed wings, the upper
parts brown with numerous narrow, buffy bars or
margins, the tail evenly barred with grayish and
blackish, the underparts white lightly streaked
with black. L. 22.
_Range._ Arctic regions; south in winter rarely to
New York and Minnesota. The Gray Gyrfalcon (_F. r.
rusticolus_) a paler form, with a streaked crown,
the Black Gyrfalcon (_F. r. obsoletus_) a
slate-colored race, and the White Gyrfalcon (_F.
islandus_) are also rare winter visitants to the
northern United States.
These great Falcons are so rare in the United States that unless they
are seen by an experienced observer, under exceptionally favorable
conditions, authentic records of their visits can be based only on the
actual capture of specimens.
DUCK HAWK
_Falco peregrinus anatum_
The adult is slaty blue above; buff below marked
with black, and with black cheek-patches. Immature
birds are blackish above margined with rusty,
below deep rusty buff streaked with blackish. L.,
male, 16; female, 19.
_Range._ Northern Hemisphere, breeding south
locally to New Jersey and in Alleghanies to South
Carolina; winters from New Jersey southward.
Washington, rare and irregular W.V. Ossining,
casual. Cambridge, rare T.V., casual in winter,
SE. Minn., uncommon S.R., Apl. 4.
As the Peregrine of falconry we know of the Duck Hawk as a fearless,
dashing hunter of greater power of wing and talon. It nests in rocky
cliffs in April and from its eyrie darts upon passing Pigeons and other
birds.
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