Description - A large, robust falcon, The Peregrine
Falcon is slate-grey above and pale below, with fine black
bars and spots. The head is hooded with black and has
a wide black "moustache". Young birds are brown or brownish-slate
above and heavily streaked below. Usually a silent bird,
a rasping "kack-kack-kack-kack" can be heard while nesting.
Distribution - The Peregrine Falcon breeds from Alaska
and the Canadian Arctic, south through the mountainous
west and sparingly in the east, wintering coastally, north
to British Columbia. They prefer open country, especially
along rivers and lakes and occasionally in cities.
- During the 1950's and 1960's a pesticide was used that
caused the eggshell to thin, drastically declining the
population of the Peregrine Falcon. Since then this pesticide
has been banned and this falcon's numbers are increasing
again. They survive chiefly on birds, rodents and insects;
in urban areas the Peregrine subsists mainly on pigeons.
This bird lays its 2-4 cream or buff coloured eggs with
reddish-brown spots in either an abandoned bird's nest
or on a cliff or building ledge.