Learning on the Wing

OSPRY2.gif

Photo: Smithsonian Institution

What's an Osprey?

Common & Scientific Names Characteristics Calls Range Habitat Nesting Feeding
COMMON NAME: Osprey

SCIENTIFIC NAME: Pandion haliaetus

Osprey Head

MNWR Photo: Mike Morgan

IDENTIFYING CHARACTERISTICS:

Wingspan 4.5-6 ft. length 22-25 in. They are dark brown above, white below, have a white head with a prominent black eye stripe. Females usually have a dark spotted "necklace".

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Photo: (c) Les Maynard

Flight Calls (near the nest):

Click one of the speakers to hear what an Osprey sounds like.

Sound recordings from Cornell Lab of Ornithology, "Library of Natural Sounds", by permission.

osprey call 2

osprey call 3

RANGE:

Ospreys have a worldwide distribution being found at some time in their life cycle on every continent except Antarctica. They are found breeding in Scotland, and from Scandinavia across northern Europe and Asia to the Pacific. Many of these birds winter in Africa. They also breed in Australia and some of the surrounding Pacific Islands. In North America, Ospreys breed from Alaska to Nova Scotia south to the Great Lakes states and along both coasts of the United States into Florida on the Atlantic and Sinola on the Pacific.

Breeding osprey are also found along the Gulf of Mexico from Florida through Texas, and on some of the Caribbean Islands. Migratory Ospreys are found during the winter through Mexico, Central America, and South America. Ospreys are found year-round in Baja, Mexico, south Florida, and south Texas.

ospreysunset.jpg

Photo Copyright Ron Wulff, Jr.

 

HABITAT:

Found near water, they usually nest near the top of large trees but will nest on artificial structures such as power poles, channel markers or special "Osprey platforms" (2/3 of the Osprey in Wisconsin nest on artificial structures). They will also nest on cliffs.

In the Montezuma Wetlands Complex, there are currently ten different nest sites, which produced 20 young in 2001.

 

NESTING:

Ospreys build a bulky nest of sticks similar to eagle nests. In some places they nest in colonies, Ospreys lay 3-4 eggs which hatch in about 30 days.

OSPNEST.JPG

USFWS - MNWR Photo

FEEDING HABITS:

Almost exclusively a fish eater, Ospreys are noted for their feet first plunge into the water when catching fish. Special adaptations for fishing include a reversible front toe and "spicules" on the bottom of their feet for grasping slippery fish. After catching a fish the bird carries it in a head first orientation as it flies back to the nest.

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Photo: (c) Les Maynard

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