Decorah North Eagles Archives - Raptor Resource Project

The Raptor Resource Project
♡ Donate
🛍 Shop
✉ Subscribe

Decorah North Eagles and Blogs

Nestflix: Decorah and Decorah North

January 13, 2020 RaptorResource

Winter is back! We have videos from Decorah and Decorah North. Mom and DM2 took the day off, but Mr. North and DNF got busy removing the snow. I especially loved the two videos from Decorah North. If you missed Sherri’s post yesterday, be sure to check out the subadult video. This is a beautiful eagle! I also enjoyed seeing Mr. North slingshot past the North nest as he tore off a branch for delivery to the nest. It isn’t

Baldi-locks … at the North Nest!

January 13, 2020 RaptorResource

By Sherri Elliott A lovely visitor today reminded me of the classic fairytale. No testing beds or tasting porridge, but this beauty was inquisitive, playful, resourceful, and showed nestoration skills while keeping an eye out for the rightful owners. I’m guessing it is almost 4 years old. It had a beautiful eye mask, darker beak, salt and pepper head feathers and a gorgeous display of mottling in tail and vent feathers. He/She displayed talent and technique moving large sticks, pulling

Nestflix: Decorah and Decorah North

January 10, 2020 RaptorResource

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 8, 2020 RaptorResource

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?

January 7, 2020 RaptorResource

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

« Older Entries