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Peek inside a Bald Eagle egg – at hatch!

March 21, 2025 RaptorResource

The camera operator gave us a wonderful peek at the eggs when Mr. North left this morning. The hatching window is larger, and we can see the outer shell, the inner membrane, and the eaglet moving around inside the egg. I’m not sure whether this is DN19 or DN20: we saw the first pip at 12:03 PM and the second one at 1:18 pm, which means these two eaglets will probably be hatching very close together! It wasn’t especially warm

Read more Decorah North Eagles, News

We have a pip!

March 20, 2025 RaptorResource

Pip-pip hooray, DN19 is on its way! https://www.raptorresource.org/birdcams/decorah-north-nest/

Read more Decorah North Eagles, News

Who’s That Bird?

March 20, 2025 RaptorResource

Spoiler alert: There are three of them! Three adult falcons showed up at Xcel Energy’s High Bridge nestbox in Saint Paul, MN yesterday! Present were: Watch live here: https://www.raptorresource.org/birdcams/xcel-energy-cams/#peregrines. While the males were very slightly antagonistic toward one another, there was none of the usual fighting. They both courted Joe’l, who seemed a little more interested in Elken. Elken has been courting her for about a month and he brought a food gift, but Monty showed up empty-taloned. While she

Announcing: Hatch Watch at Decorah North!

March 18, 2025 RaptorResource

Hatch Watch begins at our Decorah North nest tomorrow! DNF’s first egg will turn 36 days old and, while her first egg usually hatches at about the 39-day mark, hatch is a process: the third great landmark in the life of a chick. Watch live here: https://www.raptorresource.org/birdcams/decorah-north-nest/. Before hatching, the eaglet must shift from relying on membranes and external blood vessels for oxygen and nutrients to breathing with its lungs and digesting with its gastrointestinal system. It shuts off blood

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Neighborhood Watch: Goose Edition!

March 17, 2025 RaptorResource

What was going on with the geese this morning? A raccoon tried to get into the nest while both of them were there! This went a little better for the raccoon who investigated the eggs last week, before MG started full incubation: https://youtu.be/4QnHay1ajUo?si=QArQZVmF14IVnUiV and https://youtu.be/M9UbphJOjic?si=JNFzPJumJ-eVOwI1. But geese are large, formidable foes and the raccoon quickly backed down. How large are Canada Geese? Cornell tells us that they are 29.9-43.3 inches long (76-110 cm), weigh 6.5 to 20 pounds (I’m assuming

Who’s That Bird?

March 12, 2025 RaptorResource

Who’s that bird at our Red Wing Grain nestbox? It’s Maggie 79/X, a 2020 hatch from Effigy Mounds National Monument near Marquette, Iowa! 2020 was a very special year at Effigy Mounds. In 1996, RRP’s founder Bob Anderson moved down to Iowa to pursue returning Peregrine Falcons to their historical eyries on the cliffs of the Mississippi River. We did two years of releases from Hanging Rock at Effigy Mounds National Monument and, in 2000, peregrine falcons returned to the

Peek inside a bald eagle egg: 24 days!

March 12, 2025 RaptorResource

As of this blog post, DNF’s two eggs are 28 and 25 days old, Mrs. T’s three eggs are eight, five, and two days old, and Ma FSV’s four eggs are 18, 14, 11, and 7 days old. Hatch watch for Decorah North begins on March 19. 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

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March 11, 2025: Mrs. T and the Mouse!

March 11, 2025 RaptorResource

Mrs. T responded to a mouse in the house with an impressive wing whap! The merry maid was foraging for leftovers this morning when Mrs. T reacted to – from her perspective – an unknown threat. She snapped her wings wide and the mouse quickly dove into the nest’s understory, escaping her wrath. Startled wide awake, she remained incredibly still for a minute or two before relaxing. Not long afterwards, she joined Mr. T on a limb and the two

A Third Egg for Mrs. T!

March 10, 2025 RaptorResource

Congratulations to Mr. and Mrs. T on egg #3, which arrived at 4:14 PM CDT today! This latest egg has me thinking about the possibility of a new female. While eagles are always full of surprises (looking at you and your four eggs, Ma FSV!), the shift to later egg-laying – along with the addition of a third egg this year after having just two at Trempealeau last season – really makes me wonder. I’m looking forward to hatch!

A Canada Goose egg has landed in N1!

March 10, 2025 RaptorResource

Mother Goose laid her first egg of 2025 in N1 on Sunday, March 9, at 11:31 AM CDT. Based on our data, I believe she’ll lay egg #2 on March 11 between 8 and 11AM, although birds have tricked me before! Is this the goose we watched last year? We don’t know, although we do know that she started laying 10 days earlier than the geese did last year. Having said that, almost all of our birds have laid early