Osprey

The Osprey is a large fish-eating hawk; it looks like a small eagle with its white crest, but it has a dark mask through the eye. It is the only hawk that dives into the water.  It has an unusual habit when it carries the fish it catches. Osprey|Santa Barbara Jetty|Santa Barbara, CA The fish is always aligned head first in its talons. It will even flip the fish during flight to get it head first! We have spent some time watching the Osprey fish.  It is strong and agile, and we have found it to be as curious about us as we are about it!  It is the only hawk that allows us to get up close enough to photograph.

Description

Male and female Ospreys look alike but the female often has streaks or a “necklace” across her breast. They are dark above, white below, with round heads.  The head is mostly white with a field mark dark eye stripe and yellow eyes. They have crooked wings which bend at the wrist; there are dark wrist marks on the under wing. The long toes on their feet have a coarse spiky surface which helps the Ospreys grip heavy fish. Their flexible toes and can configured with three toes forward, one back, or two forward and two back to better grip fish.  They have hooked bill; the tail is long and has narrow bars. The juvenile has pale fringes on the feathers of its upper parts,  a buffy colored breast, and red eyes.

Range and Habitat

Ospreys are found worldwide, on every continent except Antarctica.  They are found near the coast, large bodies of water, rivers, estuaries, or lagoons, which are able to support good sized fish. In North America, it winters in California, Nevada, Arizona and Texas, southward to central and northern South America.  They are highly migratory.

Behavior

The Osprey beats its wings and hovers just before diving feet-first into the water; it catches a fish just below the surface of the water. Two talons can be moved to each side if the fish for a better grip.   It sometimes submerges completely, and might even swim for a short distance. The Osprey has nostrils that can close to keep out the water. The wing design of the Osprey gives it the lift that is required to emerge from the water.  In flight,  its narrow wings are held  slightly arched while it soars, similar to a gull’s flight.    It has a 65″ wingspan with a slow, deep wing beat; it flaps more than it soars. The Osprey is often seen in flight with its legs dangling.  It prefers to eat only fish, but may eat small mammals is food is scarce.  You also might see the Osprey taking its fish up high off of the ground.  It likes to eat on a high perch. It also can be found perching or resting on poles, trees and other high areas. The Osprey’s call is a loud, clear, whistled “kyew”.

Breeding and Nesting

The Osprey breeds from Alaska south, along the coast to Mexico. During breeding season, the pair performs aerial displays, which serves to cement their relationship with each other. They place their nest near fresh or saltwater. It is a platform nest made of sticks and twigs in a tree, on a cliff, on the ground, on a nesting platform, or a pole.  The female lays 2-4 eggs. Both of the parents incubate the eggs for about 40 days.  After the young hatch, the male will bring food to the female and the young.  Both parents will continue to feed the young as they grow.  The chicks fledge in about 48-53 days. Pairs or their offspring may return to the same nest year after year. Because of this, the nest can become rather large.  Some have been found to measure seven feet across and ten feet deep.

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