Decorah Eagles and Blogs

May 11, 2024: Day Trip to Decorah!

May 11, 2024: Mom feeding D40

Story and photos by Robin Brumm Saturday’s weather was supposed to be perfect, so guess where I went? You guessed it, I went to Decorah to see Mom and DM2. I also wanted to see if I could confirm how many eaglets were in the nest. So I packed up my stuff Saturday morning, and headed to Decorah. When I got to the nest, I noticed one parent in the nest and the other parent on the broken branch where

May 5, 2024: Decorah Day Trip

DM2 and eaglets

Story and photos by Robin Brumm I finally had a weekend that cooperated with a nice day, so I headed to Decorah. I was anxious to see if I could see any eaglets at N4, Mom and DM2’s nest. If there are eaglets, they would be about 2 weeks younger than the eaglets at DNN. I was a little on edge since Mom and DM2 haven’t had any eaglets the last two years, so as I walked down the trail

April 15, 2024: NestFlix and News From Decorah North, the Trempealeau eagles, and N1

April 15, 2024: Natal down mohawks, thermal down bodies.

Time to Nestflix and chill! At Decorah North, our grey grey tweagles are eating fish tails, sprouting pinfeathers and mohawks, coughing up pellets, and making all of their milestones! At Trempealeau, Mrs. T brings in an impressively large suckerfish and she and Mr. T defend the nest from a barred owl. The geese jumped this morning. Five of the six survived and the little family paddled downstream this morning. Perhaps we’ll see them below N2B or at the hatchery pond!

What are HM and HD up to?

April 13, 2024: HD and HM work on their latest nest.

– By John Howe Many of you have been wondering what HM and HD have been up to. Earlier this season they were spending plenty of time in the new nest we referred to as N5. We have not been able to see details of how that nest was doing, but we at believed that they laid eggs and were in incubation mode. In recent weeks, we noticed that they have been perched together for longer periods outside the nest

March 30, 2024: A Day Trip To Decorah!

March 30, 2024: Mom Decorah. She is still nesting at 22 years of age.

Story and Photos by Robin Brumm The weather finally cooperated and I was able to go to Decorah and not get snowed or rained on. So I got up at dark o’clock (not really, it was light o’clock) and headed off to Decorah. I was thinking about Mom and DM2 on the way over and had my talons crossed that they were still incubating. Their last 2 seasons haven’t been successful and I hope that this season will be a

Watching Bald Eagles

November 7, 2017: Dad Decorah

This is a flashback post first published on April 26 of 2012. I repost it every year when the eagles begin bringing suckerfish into the nest. For new followers: Bob (Anderson) founded the Raptor Resource Project and was its first director. You can learn more about him here: Here’s 2024’s first sucker – note that it was big enough to make Mr. North work! Bob took a turn operating the controls at the bald eagle camera this morning.

March 18, 2024: NestFlix and Chill!

March 18, 2024: HD visits the N1 tree, upsetting the geese.

We have your Monday NestFlix, but let’s look at the week ahead before we put our feet up and chill! We’re looking forward to hatch beginning at Decorah North on Saturday or Sunday, first eggs at peregrine falcon sites (my bet’s on Dubuque for the first egg at a nest we monitor: and a possible return of winter weather later this week! Well, we’re not really looking forward to that last one, but we are curious about what egg-laying

March 3, 2024: Day Trip To Decorah

DM2 in back and Mom in front

Story and photos by Robin Brumm I had been to Decorah a couple of weeks ago, but Mom and DM2 were not incubating at that time. It was a busy week, and just when I was about to write a day trip, I found out that John saw Mom & DM2 were incubating on Friday. So I decided to wait on the day trip and head to Decorah again last Sunday to see if I could get some pictures of

March 4, 2024: NestFlix and News!

March 3, 2024: HM on the Y-Branch. She's not nesting here this year, but she doesn't seem interested in letting geese have it, either!

It’s been a busy few days for everybirdy! We have eggs at Decorah North, Fort St. Vrain, and Trempealeau; an ever-changing group of female falcons trying to catch Newman’s attention (Lisa has so far chased them all off); Canada Geese looking at N1 (HM says absolutely not), and falcons showing up at every site we watch. I’m still trying to get band numbers at our sites, so please give me an email if you get one! We’re estimating hatch in

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

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