Tag Archives: Eggs

April 5, 2019: News and Nestflix!

April 5, 2019: DM2 and D32

Let’s start with a nest round-up! We have one eaglet in Decorah and are waiting for hatch on the second egg. D32 has a healthy appetite and has been working on its feeding and food coma skills today! DM2 hasn’t fed his nestling eaglet yet, but he has brought in fish and done his share of brooding (when Mom allowed it). We have one eaglet at Decorah North. In case you missed the announcement, DN10 did not make it past

Peek inside a bald eagle egg: 24 days!

Development of an avian embryo

This blog was first published on March 23, 2017. We reposted it to give everyone a peek inside the eggs. As of this writing, there are two eagle eggs in Decorah. We’re not sure whether the oldest or second oldest egg cracked, but we do know that the youngest is about 24.5 days old, the middle is 29 days old, and the oldest is 32 days old. What do embyronic eagles look they look like as they develop and grow

Peek inside a bald eagle egg: 17 days!

A chicken embryo roughly halfway to hatch

This blog was first published on March 23, 2017. We reposted it to give everyone a peek inside the eggs. As of this writing, there are two eagle eggs in Decorah. We’re not sure whether the oldest or second oldest egg cracked, but we do know that the youngest is about 17.5 days old. 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

Can mice destroy bald eagle eggs?

03/13/19: A mouse under Mom Decorah's tail

Eeeek – mice! We’re getting asked whether mice could or did destroy eggs in our eagle nests. Our answer? A guarded “No”. In North America, researchers have found limited predation by mice in the nests of smaller birds, and none in the nests of birds of prey or larger birds. Researchers have been looking at nest predation for a long time. How do nest location, weather, landscape, habitat fragmentation, and predator-prey/predator-predator relationships impact predation rates? Can nest predation be reduced?

Broken Egg in Decorah

03/11/19: Broken Eagle Egg in Decorah

We’re sorry to let everyone know that one of the eggs at N2B has broken. It was stuck to Mom’s feathers when she exited the nest for shift change this morning. The contents were still fluid, which means that the egg wasn’t frozen, and the egg was one of the older/browner eggs. Eggs become stained as they are rolled in the nest, which, until all the eggs have picked up roughly the same amount of color, means that older eggs

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