They’re Coming

It’s that time of year, again. They show up right around St Patrick’s day and stay all summer. No, not the tourists, the Osprey.

The western osprey (Pandion haliaetus carolinensis), is a large fishing raptor most often seen in Delaware’s inland bays building nests on man-made platforms. Usually taking bunker, mullet, and bluefish, many anglers report birds capturing flounder on the flats. Adults can weigh up to four and a half pounds with a wingspan just shy of six feet. Here in Delaware, osprey average about three and a half pounds.

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Osprey feeding near the Indian River Inlet
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At Cape Henlopen State Park, the birds are commonly seen on the bay near the fishing pier. They frequently nest in the fire control towers found on the bayside. The Seaside Nature Center in Cape Henlopen State Park has a live feed of one of these nests. Bald eagles have been seen taking their catches when they return.

Osprey populations declined in the mid-20th century, probably due to habitat loss and the effects of pesticides such as DDT, which can cause eggshell thinning. With the banning of certain pesticides, greater protections for birds of prey, and nesting platforms designed by organizations such as the Citizens United To Protect The Maurice River And It’s Tributaries, Inc., populations have seen significant recoveries.

Andrew Hansen, Wildlife/Forestry Conservationist, Naturalist

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