Becoming Immature Eagles
Posted by: Lisa in Eagle Videos, Blackwater NWR, Immature Eagles(Eaglets eleven weeks old)
Our eaglets are now eleven weeks old, and if you look at this comparison shot, you’ll be amazed at how much they’ve changed in such a short period of time.
Normally eaglets fledge at around 9-13 weeks of age, so I went to the Refuge on Saturday to tape some video clips and to watch the video monitor at our Visitor Center to see if I could tell if Intrepid (our older eaglet) was flying. The eaglets were acting a little lazy on Saturday morning, but later in the day they became more active, and Intrepid did do a bit of flapping and branching, but did not appear to leave the nest. So at least as of this past weekend, it doesn’t look like he’s flying yet, although that could happen any day now.
Our younger eaglet, Destiny, will likely take that first leap not long after Intrepid goes, since the eaglets are close in age. Also, the sight of Intrepid flying around will likely motivate Destiny to get moving as soon as he’s able.
In our first video below (these videos are on YouTube as well) we see the eaglets at 10 weeks of age (the first two videos were recorded last week and the third is from Saturday), and in this clip one of the eaglets gives us a great view of his developing feathers. As he begins to flap, notice how his down feathers are falling off and blowing away — like snowflakes in the wind. Once the eaglets’ feathers are completely developed, the eaglets will have some remaining down feathers, but they’ll be under their feathers and close to their body.

In the second clip, we see one of the eaglets doing a little nest maintenance (notice how much the nest is moving in the wind), then suddenly the eaglets become excited as they hear one of the parents returning to the nest. Next we see the father fly in with a fish, and one of the eaglets aggressively tries to take the fish from the parent, but the father hangs on and manages to feed both eaglets as they stab at the fish pieces. Gone are the days when the little chicks sat meekly in the nest and waited to be fed. :-)

And in our third clip, we see the eaglets as they were on this past Saturday. In this video, Intrepid dances around the nest a bit as he flaps his wings, and he even jumps onto the branch briefly, but he does not leave the nest.

It was breezy at the nest on Saturday, so it was interesting to see both eaglets flapping while also reacting to the windy conditions. Reading the wind is a skill that they’ll need when they’re riding the air over Blackwater Refuge and the Chesapeake Bay.
Speaking of Blackwater Refuge and the Bay, I wanted to talk a little in this web log entry about where the eaglets will go once they fledge. The Blackwater River is the main body of water within the Refuge, and the eaglets will spend a good deal of time perching near it and fishing in it over the upcoming months. What makes Blackwater Refuge a popular place for eagles (and ospreys) is that the local waters are very shallow, and since both eagles and ospreys get their fish near the surface, the waters offer a habitat that suits their fishing styles. Also, the Refuge has plenty of safe nesting areas and a healthy food population. Below are four photos that give you an idea as to where our eagles like to hang out. Click on the thumbnails for larger photos.




In the first shot, two adult eagles are perched over the Blackwater River and its marshes; this tree is a favorite perching spot near the Wildlife Drive. In the second photo, an adult eagle is perched on an empty osprey water platform. In the third shot, a perched eagle in the distance overlooks a fall scene where migrating geese fill the marshes. And in the final shot, the sun sets over a group of trees where immature bald eagles like to hang out together and watch for an easy meal in the river below.
While I was at the Refuge on Saturday, I saw quite a few immature bald eagles hanging out in the marsh and fields behind the Visitor Center. Often immature eagles (up to about four years of age) will stand or perch together — like a gang of teenagers hanging out on a street corner. It’s possible they feel less threatened with fellow immatures and it’s also likely the camaraderie may help them in their never-ending quest to find food.
In this photo that I took from a distance on Saturday, you can see a group of immature bald eagles of varying ages standing together near the water. Note how none of them have a completely white head yet. And in this next shot, you can see an immature bald eagle playing in the water that is behind the platform on the Osprey Cam. The two birds you see on that tall pole in the photo is our Osprey Cam pair, and the Blackwater River is in front of them.
So these are some of the places where our young birds will go once they are no longer bound to the nest. Blackwater Refuge is a wonderful place for a growing raptor, so we know they will have a wonderful time exploring the region, and we wish them all the luck in their future adventures.
Once our eaglets fledge, they will come back to the nest occasionally during the weeks that follow. The parents might meet them at the nest with a meal, and the eaglets might come back to sleep or just to rest for a bit. But eventually we’ll see less and less of them, and that will mean they are becoming independent young raptors that no longer need a nest. At that point, Blackwater Refuge — and the Chesapeake Bay area — will be their home.
Cam watchers have asked about bald eagles and migration. Many bald eagles do migrate, but the ones in the Chesapeake Bay region normally do not. During the winter, our adults will roam around the area but not really leave; however, areas like Blackwater Refuge will get more eagles during the colder months as bald eagles from up north migrate down here for part of their winter.
As for our immature bald eagles, young birds often roam for the first few years of their lives, since they don’t have the responsibility of a mate and chicks (that will come around five or six years of age). So while Intrepid and Destiny won’t migrate, they might roam over a large distance until it’s time to come back to Blackwater and settle down with a family.
Until next time,
Lisa - webmaster
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eagles, wildlife refuge, eagle cam, Blackwater Refuge, Maryland
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