three orange-eyed osprey - Bill Portlock - 695x352
  • Osprey At A Glance

    APPEARANCE: Ospreys are raptors with dark brown and white feathers and a white stomach.

    SIZE: Ospreys weigh two-and-a-half to four-and-a-half pounds and their wingspan can reach five to six feet.

    DIET: Fish make up almost 99 percent of the osprey's diet.

    INTERESTING FACT: The osprey is one of the most widespread birds of prey and can be found on every continent except Antarctica.



  • Osprey Tracking Project

    CBF's Osprey Tracking Project allows students and teachers to track three ospreys, one living on Virginia's Port Isobel Island and two on Holly Beach Farm in Maryland, from their home and classroom computers. The page includes lesson plans for teachers and puzzles, projects, and more for students, as well as a link to video of the tagging process. Learn More

  • Osprey Feel the Heat

    Ospreys are powerful fliers and migrate to South America for the winter. Is climate change affecting their patterns? Find out in this article from CBF's flagship magazine, Save the Bay. READ NOW

  • Moving Day for the Osprey

    Find out about "moving day" for one osprey pair at the Philip Merrill Environmental Center and see what else is up with our feathered friends on the Chesapeake Bay Foundation blog. CHECK IT OUT

More About Ospreys

  • Fones Cliffs Fauna

    March 27, 2018

    There are few places like Fones Cliffs left in the Bay watershed.

  • Moving Day for the Osprey

    March 31, 2016

    A recently arrived, misguided osprey has chosen the top of a live electrical pole at our headquarters to build his nest. But rather than risk the lives of the osprey and his future young (not to mention a power outage), BGE is building a new pole and platform dedicated solely to the osprey and his future family.

  • 9 Reasons Spring Is Awesome

    March 17, 2016

Support the Chesapeake Bay Foundation

Your donation helps the Chesapeake Bay Foundation maintain our momentum toward a restored Bay, rivers, and streams for today and generations to come.

Donate Today


Do you enjoy working with others to help clean the Chesapeake Bay? Do you have a few hours to spare? Whether growing oysters, planting trees, or helping in our offices, there are plenty of ways you can contribute.