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Eaglet Growth and Development: Week Four

April 19, 2022: DN15 and DN16

We’re writing a series of blogs about the first few weeks of an eaglet’s life. An eaglet spends roughly 75 to 80 days in the nest. For about the first half, it grows and gains weight. For about the second half, it grows flight feathers and starts developing the skills it will need post-fledge. We will focus on week four in this blog. DN15 and DN16 turn 25 and 24 days old today. During week three (fourteen to twenty-one days),

Eaglet Growth and Development, Week Two

April 5, 2021: DN13, left and DN14, right

We’re writing a series of blogs about the first few weeks of an eaglet’s life. An eaglet spends roughly 75 to 80 days in the nest. For about the first half, it grows and gains weight. For about the second half, it grows flight feathers and starts developing the skills it will need post-fledge. We will focus on week two in this blog. In their second week of development, the eaglets will gain roughly two pounds, experience rapid growth in

Eaglet Growth and Development: Week One

March 26, 2021: DN13 eats breakfast!

We’re writing a series of blogs about the first few weeks of an eaglet’s life. An eaglet spends roughly 75 to 80 days in the nest. For about the first half, it grows and gains weight. For about the second half, it grows flight feathers and starts developing the skills it will need post-fledge. We will focus on week one in this blog. What can we expect in the first week following hatching? Like humans, growing eaglets have developmental milestones.

Eaglet Growth and Development: Week Three

April 12, 2021: DN13 back, DN14 front

We’re writing a series of blogs about the first few weeks of an eaglet’s life. An eaglet spends roughly 75 to 80 days in the nest. For about the first half, it grows and gains weight. For about the second half, it grows flight feathers and starts developing the skills it will need post-fledge. We will focus on week three in this blog. DN13 and DN14 are 18 and 16 days old. During week two (seven to 14 days), the

DN12: Eaglet development at almost two weeks

April 11, 2020: Mr. North and DN12

We’re catching up on videos today, but I wanted to share this footage of DN12 before the roundup. DN12 was 11 days old when this video was made. Eaglets gain roughly two pounds in their second week of life. They experience rapid growth in features like beaks, culmens, and footpads, start replacing their white natal down with thicker grey thermal down, and begin exploring the nest. Although they aren’t yet standing on their toes, they are able to sit up

Birds and Nest-Building

A blackbird's cup nest

When I say ‘bird’s nest’, you know the type of nest I’m talking about, right? It could be a bald eagle’s stick platform high up in the branches of a tree. Or perhaps a peregrine falcon’s scrape in dirt, sand, or gravel on a shallow cliff ledge. Or maybe the burrows that bank swallows and belted kingfishers excavate in dirt, the cavity nests that woodpeckers excavate in dead wood, or the woven nests that orioles and weavers build. When I

Learning Eagle Table Manners

May 10, 2022: Learning Eaglet Table Manners

We were asked about eaglet growth and development during our explore.org Bird Week chat yesterday. Bald eagles spend about the first half of nest life – say, 35 to 40 days – gaining weight, growing limbs and feet, and growing and replacing feathers. In stage two – about 40 to 75 or 80 days – they begin preparing for life beyond the nest by building muscle, exploring their new wings, learning to unzip prey and feed themselves, and practicing their

Monday Morning North Milestones and Eaglet Movie Marathon!

Sibling love! DN15 (right) gives DN16 an adorable wing hug.

We have your Monday morning North milestones and movie marathon! The Decorah North eaglets turn 16 and 15 days old today. While the wet, chilly weather put a damper on nestploration in their second week, we thrilled to several milestones, including a first fish tail (DN15), a first pellet cast (after the fish tail), emerging thermal down, and huge cropzillas on both eaglets! Pellet Casting Why is pellet casting a big deal? Eagle parents feed their hatchlings ‘baby food’ –

Decorah North Eaglet Update

April 5, 2022: DN16 and DN15

Today DN15 turned ten days old and DN16 turned nine days old! Although the weather has been a little chilly for adventuring, the two are already beginning to sport some thermal down (it is most visible on DN15 right now) and are eagerly eating everything Mom and Dad bring in. We’ve seen plenty of fish, cowghetti, a rabbit, a chipmunk, and a few red meat UFO’s. What’s on the menu? Sometimes only the eagles know! Who feeds more and how

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