Home, near and far.
This species has a cosmopolitan distribution, occurring on all continents except Antarctica. In North America, they breed from Alaska and Canada south to the Gulf Coast and Florida, and along the Pacific and Atlantic coasts.
Birds Heard
FIELD GUIDE
FIELD GUIDE
Osprey
Osprey
Pandion haliaetus
The Osprey, also known as the fish hawk, is a distinctive raptor found across nearly all continents. These large birds are uniquely adapted for hunting fish, showcasing specialized physical traits and behaviors that set them apart from other birds of prey. Their striking appearance and fishing prowess make them a notable sight near aquatic environments.
Cosmopolitan, migratory, pisci
- Length
- 54-66 cm
- Wingspan
- 152-183 cm
- Weight
- 1400-2000 g
Typical adult measurements.
Individuals and populations vary.
01 / The telltale details
You’ll know it
when you see it.
Start with shape and behavior. Then look for the smaller details.
- 01
Plumage
Adults have dark brown upperparts and white underparts, with a white head featuring a prominent dark eye stripe.
- 02
Flight Profile
In flight, the long wings are held with a distinct bend at the 'wrist,' creating an M-shape.
- 03
Underside
The white underside contrasts with dark brown wings and a dark patch at the wing 'wrist.'
- 04
Juvenile
Juveniles can be distinguished by pale scaling on their back feathers.
02 / A place in the world
Where life
takes it.
Ospreys are found near various bodies of water, including coastlines, major estuaries, salt marshes, large lakes, reservoirs, and rivers. They require shallow water with an abundant fish supply for foraging.
Stay a while. Or follow the season.
Northern breeding populations are migratory, arriving in northern areas from March to May and migrating south from August to November. Non-migratory populations exist in some tropical and subtropical regions, such as the Caribbean.
03 / Listen a little closer
A voice
of its own.
Ospreys produce clear whistling or chirping calls, especially noticeable overhead near water.
04 / The life behind the feathers
A day in its world.
On the menu.
The diet of Ospreys consists almost entirely of live fish, making up about 99% of their food intake. Occasionally, they may consume small mammals, birds, reptiles, amphibians, or invertebrates, particularly in inland areas where fish may be less abundant.
Ospreys hunt by flying slowly over water, hovering when prey is spotted, then plunging feet-first to grasp fish with their talons. They possess specialized feet with reversible outer toes and spiny pads for securing slippery catches.
A place to begin.
Nests are bulky piles of sticks, often built on large trees, utility poles, channel markers, or artificial platforms. Both sexes contribute to nest construction, and pairs may reuse and add to the same nest for many years.
The little routines.
Ospreys are generally solitary hunters. During courtship, males may perform aerial displays, including high flights and repeated dives near the nest site, often carrying a fish or stick.
One more reason to pay attention
A familiar face.
A few surprises.
Ospreys are unique among North American raptors for their specialized diet of live fish and ability to dive into water.
When flying with a captured fish, an Osprey will orient its prey head-first to reduce wind resistance.
Ospreys have rebounded in numbers following the ban on the pesticide DDT, which had severely impacted their populations.
05 / An eye for the difference
Could it be
someone else?
Bald Eagle
Haliaeetus leucocephalusBald Eagles are larger, have a dark chest and underside, yellow legs, and fly with wings held flat.
Red-tailed Hawk
Buteo jamaicensisRed-tailed Hawks are generally smaller, lack the prominent dark eye stripe, and have a reddish tail in adults.
Behind these field notesResearch & references · 11 sources
AI-assisted species research. Prepared September 2026. Details can vary across regions and populations.