Decorah North Eagles and Blogs

Nestflix: Decorah and Decorah North

January 9, 2020: DM2 and Mom

We have your videos and a little more! I saw an article on parrots and altruism this morning that I wanted to share. Followers often wonder what kind of internal lives our eagles have. Over the years, we’ve seen them experience what looks like pleasure (sunbathing, preening, sibling cuddle puddles, bonding, and many other moments), confusion and fear (Mom’s plaintive pealing after Dad’s disappearance), and even annoyance (think of those Beakerson’s moments). Parrots and eagles live in very different ways,

Nestflix: Decorah, Decorah North, and the Mississippi Flyway

January 6, 2020: Mom and DM2 disagree on stick placement

I loved all of tonight’s videos, but I was particularly intrigued by the fourth video down. We’ve speculated about our eagles ‘farming’ sticks, or preparing them for removal and transport to the nest. What would that look like? They might weaken sticks by twisting and pulling them or strip bark from sticks to girdle them. Look at the ninth minute of the video, where DM2 appears to be preparing sticks, and check the 11th minute, where he appears to be

What is a brood patch?

March 30, 2018: Mrs. North's brood patch

Daylight length, or photoperiod, strongly influences hormone production in birds. In the northern hemisphere, our story begins shortly after the winter solstice in December. As daylight length increases, a cascade of hormones causes birds’ gonads to swell in preparation for reproduction, egg-laying, and incubation. In this blog, we’ll discuss the role the brood patch plays in incubation and determining clutch size. How do bald eagles keep their eggs warm in subzero temperatures? They apply heat via a special area of

Friday night mega-roll: Videos from Decorah, Decorah North, and the Flyway

January 2, 2019: A hawk visits the North Nest

Happy Fri-yay, everyone! We have your Friday night nestflix mega-roll from Decorah, Decorah North, and the Flyway. The days are getting longer, the eagles are getting friskier, and nursery preparations are well underway at both Decorah nests! Fishing is good on the Flyway, where relatively warm weather has stretches of water open for chubby muskrats and hungry eagles. I enjoyed all of these videos, but really loved Mom with a huge branch, DM2’s large breakfast, and the wildlife video from

Feather Close-ups

January 2. 2020: Decorah North Female preens upper tail coverts

by Sherri Elliott Bald Eagles have over 7,200 feathers (yes, researchers study and have counted them) and each plays a remarkable part in physiology, flight, and insulation. While Bald Eagles will go through multiple plumage changes before maturity at age five when heads and tails become fully white, head feathers and upper tail coverts can be distinctly colored and patterned as they segue or transition to body or tail. Thanks to the camera operators we have closeups of Mom Decorah’s

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