Category Archives: Decorah Eagles

Eagle Eyes!

Human Eye versus Eagle Eye

Has anyone ever called you eagle-eyed? Relative to humans, bald eagles have larger, sharper eyes that see further, collect more details, and produce stereoscopic vision to greatly improve depth perception. A bald eagle’s visual acuity begins with its eye size and shape. Dad’s somewhat tubular eyes occupy over 50% of the volume of his skull, as compared with less than 5% in us spherically-eyed human types.  He can voluntarily adjust the curvature of his large cornea and lens (we’re restricted

Videos: pole-vaulting sticks, nuzzling, net visitors!

In Decorah, Mom brings in a pole-vaulting stick. Although eggs are still about three months away, Mom and Dad work on the nest bowl together and do a little nuzzling under IR candlelight. Meanwhile, Mr. North eats with his mouth open (check out the size of that bite!) and a bluejay, pesky squirrels, and an intrepid crow all visit the nest – and the Norths! I really enjoyed all of these videos, but especially liked Mom and Dad Decorah under

A Veterans Day Thank You from the Raptor Resource Project

A Veterans Day thank you from all of us at the Raptor Resource Project! November 11, Veterans Day, honors and celebrates the service of all military veterans. Thank you to our veterans for their patriotism, love of country, and willingness to serve and sacrifice for the common good. You heard the call of duty and left the lives you knew to answer it. When we think of veterans, we usually think of the people we know. But our veterans also

Cam on date: October 7th!

It has been a busy couple of weeks for us in Decorah! We started camera work at 9:00am on September 13th and finished up at roughly 7:00pm on the evening of September 22nd. The crew had moments of joy, a little hand-wringing, and no small amount of sweating in the unusual 90+ degree heat that prevailed almost the entire time we were there. We saw Mom and Dad Decorah sitting in a maple tree, fishing in the pond, and perched

Raptor Banding and Trapping Station

The Raptor Resource Project and Luther College have launched a trapping station project to collect data on birds of prey, provide field-based research opportunities, and deliver environmental education to youth. The project was funded via a Resource Enhancement and Protection/Conservation Education Program (REAP/CEP) through Iowa’s Department of Natural Resources. To learn more about REAP/CEP, including some of the really cool projects they have funded over the years, follow this link: http://www.iowadnr.gov/Conservation/REAP. While we know a fair amount about cameras and

Persistence Pays Off – a post by Brett Mandernack about the fitting of D27’s transmitter.

D27's transmitter fitting

It is early August and I have one satellite transmitter (or PTT) yet to deploy on a young eagle. Dave and Ann Lynch spent two solid weeks in late June/early July perfecting their craft of artful presentation of fish to the Decorah fledglings, yet the “kids” instead chose to food-beg loud and often and insist Mom or Dad bring them food at the nest. There was no evidence of any of the fledglings ever picking up a fish during that

Announcing: The Robert Anderson Memorial Scholarship Fund!

Bob and Peregrine Falcon

We are pleased to present the Robert Anderson Memorial Scholarship Fund! Our Board established the scholarship to pay forward Bob’s incredible legacy of passion, dedication, and commitment to making a difference. Scholarships will be awarded to selected Luther College students in Decorah, Iowa who demonstrate a concern for the environment through positive environmental activism and community involvement or independent studies related to environmentalism. The endowment is designed to receive gifts through contributions, bequests, charitable trust remainders, and other gifts directed to the Fund. To make

Announcing – the final fledge!

D27 fledges!

Last night we announced that D27 hadn’t fledged yet. And it hadn’t – at least, not at 1:15pm. But I missed D27’s flight from the nest at 2:16pm. It wasn’t an especially long flight given that D27 returned fairly quickly, and we didn’t have boots on the ground to verify that no one was in the nest…at least, not at 2:16pm! However, after a great deal of discussion with moderators and a thorough review of footage from the time period,

D27…not fledged yet!

After what appeared to be an alarming accidental fledge by D27 in Decorah, Dave Kester went over to the hatchery to check things out. He reports that all three eaglets are accounted for in the nest tree. Two are on one branch and one is much lower, but on a branch in the same tree (D27, perhaps?). An adult is perched near the eaglet on the lowest branch: https://youtu.be/qJQNAhrxTKY. The calls that watchers are hearing are not distress calls, but food

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