osprey


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osprey

(ŏs`prē), common name for a fish-eating bird of prey found near water in most parts of the world. The osprey, or fish hawk, Pandion haliaetus, has brown upperparts and a grayish white head and underparts. Its wingspread ranges from 4 to 6 ft (127 to 180 cm), depending on the subspecies. It feeds solely on live fish and is usually seen hovering over the water, into which it plunges feet first to grasp its prey. In the United States the use of DDT led to a significant drop in the osprey population by the 1960s, but after the pesticide was banned (1972) the population recovered. The birds will nest on artificial platforms, first provided in the 1960s to help protect young ospreys from predators. Ospreys are classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
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, subphylum Vertebrata, class Aves, order Accipitriformes, family Pandionidae.

Osprey

 

(Pandion haliaetus), a bird of the family Accipitridae of the order Falconiformes. The osprey is about 60 cm long and weighs 1.3–1.9 kg. The plumage is brown above and brightly colored below. There are little spines under the toes to help the bird grip the slippery bodies of fish. Ospreys are widely distributed except in tropical Africa and South America. In the USSR they are found from the forest tundra to the country’s southern borders. The birds settle near lakes and streams abounding in fish. They obtain their prey by swooping down onto or, sometimes, into the water. An oil from the coccygeal gland prevents the feathers from becoming soaked. Ospreys nest in trees and, less commonly, on cliffs or on the ground. A clutch contains two or three eggs, which are incubated for about 35 days. Ospreys are becoming rare everywhere. The birds are sometimes classified as the separate family Pandionidae.

osprey

a large broad-winged fish-eating diurnal bird of prey, Pandion haliaetus, with a dark back and whitish head and underparts: family Pandioridae
References in periodicals archive ?
Aside from watching the nest cameras, wildlife lovers can keep up to date with the story as it unfolds through the Kielder Osprey blog at kielderospreys.
Photographers are loudly told by the female osprey to stay at a distance.
Osprey nests historically were constructed in the tops of large dead trees with flattened tops.
In 2005, while monitoring osprey nests in northern Michigan to identify appropriate chicks for removal and hacking, biologists observed an unexpectedly high level of chick mortality.
The Osprey team projects that by optimizing simulators to complete up to 75 percent of 100-level training at the Fleet Replacement Squadron (FRS), the number of MV-22 aircraft marked for training can be reduced from 40 to 20.
Pete Aldridge, the Pentagon's acquisitions chief, told lawmakers last month that while he was confident the troubled Osprey would be fixed, he would not hesitate to pursue an alternative helicopter if problems continued.
Two weeks later, an Osprey carrying four Marines crashed, this time due to faulty hydraulics.
Never, that is, until I began to contemplate the osprey.
Osprey has assembled one of the most highly-regarded teams of architects, engineers, and consultants in the software development business.
Jumper arrived at MCAS and after being briefed went to Marine Aircrew Training Systems Squadron to fly an Osprey simulator.
Perhaps the MV-22 Osprey should be renamed Phoenix since this remarkable and controversial aircraft has twice risen from the ashes of skepticism and tragedy.