Ospreys hunt by diving feet first to take fish in the top 3 feet of water. This restricts their prey to surface schooling fish and those in shallow water. When they spot fish from above, they often hover before diving. Powerful wing beats are required Nike Football Shoes Cr7 2015
water carrying a heavy fish. Once airborne, ospreys maneuver the fish so it points head first to reduce aerodynamic drag. Ospreys weigh up to 4 pounds; prey fish typically weigh about a pound. But ospreys can carry half their body weight.
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Pennsylvania Game Commission is now seeking help from birders, anglers and other outdoor enthusiasts to document current osprey distribution and habitat use.
Osprey nest survey documents stocking success
Thirty years ago, seeing an osprey on a Pennsylvania lake was a rare event. Today, it's almost expected.
Ospreys, also sometimes called "fish hawks," are large raptors that can be confused with bald eagles, though eagles are chunkier and have a larger wing span (up to 8 feet). Ospreys are dark brown above, white below, and have a wide dark eye line. In flight their wings span up to 6 feet and are marked by prominent dark "wrist" patches.
"We would like to find how many nests are active this year," said PGC biologist Doug Gross, "how many chicks fledge, what type of water body they favor and on what type of structures they are building their nests."
In 1986, there was one osprey nest in the state. In 2008, according to the "2nd Pennsylvania Breeding Bird Atlas" (Carnegie Museums), there were 90 confirmed nests and another 179 sites were rated as "possible" or "probable." The resurgence of Pennsylvania ospreys is Soccer Boots Hypervenom a direct result of a 1980 1996 reintroduction program.
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