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Osprey ( Pandion haliaetus)
General Information
The Osprey is a large, fish-eating raptor intermediate in size
between the Bald Eagle and Red-tailed Hawk. It breeds in North
America from Alaska and the Yukon east to Newfoundland and south to
Baja California, the Gulf Coast, and the Caribbean.
Habitat and Range
Ospreys are typically associated with permanent water habitats,
especially sea coasts, impoundments, lakes, rivers, and swamps.
Breeding habitat requirements include open expanses of water that
support abundant slow-moving fish, water clarity sufficient to allow
visual detection of fish, and elevated or inaccessible sites for
nest-building. Ospreys consume fish almost exclusively, although
crustaceans, frogs, turtles, birds, and rodents are occasionally
taken.
Osprey nest sites are highly variable, but in Florida the birds
prefer either dead trees or living trees with broken or dead tops.
The nest tree is usually taller than surrounding trees and as close
to suitable foraging areas as possible. Where natural sites are
limited or missing, Ospreys readily nest on human-made structures,
such as power poles, radio towers, channel markers, television
antennas, or bridges. The nest is a large, bulky structure that is
regularly reused and enlarged for several successive years. Ospreys
typically lay 3 eggs that are creamy-white, and heavily blotched and
spotted with browns, grays, and rust. Incubation requires
approximately 38 days, and the young fledge at 49 to 59 days of age.
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