Birds of Interior Alaska

Predators: Osprey
Pandion haliaetus


A distinctive stripe across their face and dark wrist patches of their wings are classic field marks to help identify Osprey in flight. Osprey are a large raptor in the Order Falconiformes.



Osprey have interesting feet which help make them excellent fish predators! In addition to sharp talons, Osprey feet have rough, spiny pads and they can point the outer toe forward OR backward to help them find the best grip on slippery fish. Their short, strongly hooked bill is very effective at ripping up their meals. I love to watch Osprey fly with their fish. Osprey usually turn the fish headfirst into the wind as they fly--a great way to streamline their load.

High atop the crossbars of a power line Osprey have returned to nest again in interior Alaska. This year there are three Osprey near the nest area. One of them may be a juvenile from last year's brood.




Their nest is quite large and made of sticks.



Osprey are typically white underneath and dark on top. This coloring pattern, called countershading (Ornithology, Gill 1995; p. 206), acts as camouflage--white against the light sky and dark against the earth and helps Osprey avoid detection by their prey. Fish also utilize countershading and receive the same benefits.


Enjoy more virtual birding adventures linked on the Photo Essay List!

©J.Gilbert 6/2001


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All photos and narratives contained in this document and/or in the
Birds of Interior Alaska website were created and copyrighted by ©Jim Gilbert. 6/2001.