Decorah Eagles and Blogs

Peek inside a bald eagle egg: 24 days!

Development of an avian embryo

There are two eagle eggs in Decorah trout hatchery nest N1. DH1 is about 27 days old and DH2 is about 25 days old. What do they look like? Let’s take a peek!  What do embyronic eagles look they look like as they develop and grow inside their eggs? Dr. Peter Sharpe from the Institute for Wildlife Studies developed a table of bald eagle embryonic development based on work done by Hamburger and Hamilton (1951). While this animation uses a chicken

March 24, 2023: Friday NestFlix and News from Decorah!

March 23, 2023: HM on a windy day in Decorah

The sun is shining, the snow is melting, and birds are laying eggs!  HD and HM’s eggs should start hatching in about 11 days (April 4th), Ma and Pa Jr’s eggs should start hatching in about 17 days (April 10) and we’re looking forward to eggs at Great Spirit Bluff! Savanna has the sort of pleasantly plump look (a slightly distended lower abdomen and generally chonky appearance) that we associate with eggnancy, so I suspect it will be sooner rather

March 20, 2023: NestFlix and News from Decorah and GSB!

March 20, 2023: HM and her eggs

We have your NestFlix! In Decorah, HD and HM care for their eggs and disagree about a shift change. The Bark-a-lounger is just too comfortable to leave! At GSB, we have meadowlark for breakfast and the return of Ralex Honnold (Raccoon Alex Honnold). Savanna isn’t happy about the raccoon and is absolutely ready to defend her nest box from any intruder. You go, Savanna! When will Savanna lay eggs? We don’t have a schedule for her, so we’ll be looking

March 20, 2023: What are we looking forward to this week?

March 20. 2023: HM glows in the bright, warm sunlight.

What are we looking forward to this week? On Friday, we’ll be hosting a movie night at Convergence Ciderworks in Decorah! Come watch EaglePower with John, Dave, and Amy, meet Dave’s Red-tailed Hawk Jewel, learn more about our programs, and drink delicious cider. Doors open at 5:30 and the program starts at 6pm. More here: https://www.facebook.com/events/1404200043743501. We’re in what Bob used to call the incubation doldrums at our Decorah Hatchery and Xcel Energy Fort St. Vrain eagle nests. But we’re

Will HM’s eggs hatch?

March 14, 2023: HM shortly before leaving the nest.

On Tuesday March 14th, two brush pile burns were conducted south of the Decorah Eagles nest near the hatchery. During the early morning, the wind was blowing to the south, which carried smoke away from the nest. But at about 10:00 AM, the wind switched direction and began carrying smoke north toward the nest. Wind speed also increased from about 2.2 to about 9.2 miles per hour, which blew even more smoke and some light ash as the day progressed.

Who’s that eagle with a transmitter?

March 15, 2023: D27 eating roadkill. Based on its striped tail, this was a raccoon. Raccoons aren't true hibernators, but at this latitude, they spend a lot of winter holed up in their dens. They tend to be eager to get out, explore, and eat come spring. Note the dark head streaks. Some eagles retain minimal dark streaking past their fifth year. D27 turns six in about a month.

Who’s that eagle with a transmitter? Photographer Seth Vreeman just sent us these photos. He wrote: “I photographed a Bald Eagle just south of Canton, MN tonight. I was surprised when I got home and saw that it had a transmitter on its back. I was far enough away that I didn’t even notice it. The lighting wasn’t great and, like I said, I was a pretty good distance away. Not my best shots, but pretty cool nevertheless!” Thanks to

Monday. March 13: NestFlix and News

March 8, 2023: Mr. North at the North Nest. He is an awesome, dedicated father and is doing his best to care for the egg.

Ma FSV laid her third egg at Xcel Energy’s Fort St. Vrain nest on Thursday, March 8, which brings the total number of eggs in our nests to six: three at FSV, two in Decorah, and one at Decorah North. DNF and Mr. North’s lone egg is 21 days old, HM and HD’s two eggs are 16 and 13 days old, and Ma and Pa Jrs eggs are eleven, eight, and four days old! Here’s a peek at what’s going

Where are our eagles? D36, 733, and 834 check in!

January 26, 2023: Golden Eagles belong to the 'true' eagle genus, while Bald Eagles belong to the 'sea eagle' genus. Both are classified as eagles, but Bald Eagles are more closely related to kites.

Thanks for the airmail, eagles! Once again, our inboxes were stuffed with postcards this week as D36 and Golden Eagles 732, 733, 832, and 834 all checked in. Click each image to see a full-sized postcard and click the right arrow to see each eagle’s map! Bald Eagle D36 | Three-Year Old Subadult Male Eagle D36 has moved! Brett wrote: “D36 has begun a flyabout, heading generally SW and west of where he has spent the past several months. What

March 4, 2023: Day Trip

March 4, 2023: DM2 in the nest, Mom on the branch.

Story and Photos by Robin Brumm It had been a few weeks since I had been to Decorah, and I wanted to go check on Mom and DM2, so I got up at dark O’clock and off I went. When I got to Decorah, I drove to N4 with a quick drive through the hatchery area. I noticed an eagle in N1 but I wanted to get to N4 early for a better chance to see Mom and DM2. I

Peek inside a bald eagle egg: 11 days!

Chicken embryos roughly 25% of the way to hatch

What do embryonic eagles look they look like as they develop and grow inside their eggs? Dr. Peter Sharpe from the Institute for Wildlife Studies developed a table of bald eagle embryonic development based on work done by Hamburger and Hamilton (1951). While not all bald eagle eggs hatch in 35 days, the stages of development look something like this… What happens between the third and the 11th day? When we last touched on the topic, our embryonic eagle had

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