Decorah North Eagles and Blogs

November 4, 2022: Fri-yay NestFlix and news from Decorah, Decorah North, and the Flyway!

November 4, 2022: A beautiful subadult eagle near N1. Could it be part of the Decorah Eagle Dynasty?

Grab a bowl of popcorn and kick up your feet – it’s time for Friday nestflix! We’ve got videos from Decorah, Decorah North, and the Mississippi Flyway, and Odds and Ends from all over! Read on to learn more about birds, suckers, Ojibwe horses, and river otters in Iowa. Thanks to our camera operators and video makers for finding and sharing such special moments, and to you for watching, learning, and especially for caring. Happy Fri-yay, everyone! Decorah Eagles November

October 28, 2022: News, links, and a raptor movie marathon!

October 27, 2022: Wing hug! HD front, HM back.

Happy Fri-yay, everyone! We’ve got a regular raptor movie marathon with videos from Decorah, Decorah North, the Flyway, and the Wisconsin kestrels, a short clip that shows the nest building work we did on N1 last year, and two blogs that discuss fall activity and bald eagle egg-laying. We hope you like them as much as we did! Thank you so much to our wonderful camera operators and video makers for sharing the beauty of the world around us, and

Getting ready: Fall nestorations!

Annual Daylight Length, Decorah IA

Why are eagle couples in Decorah working on their nests and bonding right now? Among non-tropical birds, many activities (reproduction, molt, migration) are linked to daylight length. We’ve primarily discussed the photosensitive period of bird life here, when daylight lengthens, gonads start swelling, and human watchers start counting the days until eggs are laid. However, birds also have a photorefractory period that in many northern birds begins slightly prior to summer solstice in mid-June. Gonads start shrinking, a new hormonal

How Big is a Bald Eagle’s Nest?

We’re almost at the end of October and our eagles are getting busy! HD and HM have been in full-speed ahead mode since early October, alternating straight sticks, wonky sticks, and piles of fluff as they build out their new home. It might seem early to start bringing in grass, but the subfloor needs a lot of prep before egg cup construction starts. Digging creates a soft, low spot that drains water, layers of material insulate the eggs and help

On Migration

September 2019: Migrating Birds on the Mississippi Flyway

At whatever moment you read these words, day or night, there are birds aloft in the skies of the Western Hemisphere, migrating. If it is spring or fall, the great pivot points of the year, then the continents are swarming with billions of traveling birds… – Living on the Wind: Across the Hemisphere with Migratory Birds We get a lot of questions about migration. Do the Decorah eagles migrate? Do our Peregrine falcons migrate? Where do they go when they

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