Eastern Bald Eagle Migration Update: February 24, 1999
Today's Update Includes:
Today's Satellite Data from EASTERN Eagles
Five Eagles Now Flying Online in the East!
Free as a Bird
Discussion of Challenge Question #1
Peter Nye's always curious to know where his eagles will go when released after capture. Last week we asked what #F81 and #F82 did once released. Way up north in Sterling, Alaska, 2nd & 3rd grade students at Sterling Elementary looked at the satellite data and figured: "These eagles didn't move very far away after they had been captured. We think that the eagles that have been released will go and find their territory so they will find other Eastern Bald Eagles to mate with, so that they can have babies. " (email@example.com)
It certainly is true that Eagles #F81 & #F82 moved very little after capture. And this is exactly what Nye learns by watching where they go. He learns where the winter "ranges" of these birds are. (However, these eagles will have to migrate to their NESTING territories up north before actually mating. In fact, mated pairs may not even spend the winter in the same area.)
Now Eagle #F83's travels after capture tell an interesting story! Look at today's data, and the Winter Range map above, to see what happened after #F83 was set free. Late Monday night Nye wrote: "Don't know what to tell you about #F83. He was around for about 1-2 days after capture before heading north. We've had some very mild weather here last couple weeks. This week it has been very cold again, down to single digits. It'll be interesting to see if he keeps going north, if he stops somewhere for a while-- or even heads back south a bit. We'll see!"
And only 1/2 hour later we did see, when the February 22 satellite reading arrived: "Eagle #F83 dropped back south to the Mongaup River Valley capture area! Interesting little excursions on these eagles' parts; short distances though, as the 'eagle' flies!"
Distance as the Crow Flies--and the Eagle?
Today's Winter Range Map shows exactly where Eagle # F83 has been traveling. The chart below shows the distance between each place where the satellite captured a reading:
(To respond to this question, please follow the instructions below.)
Discussion of Weather Challenge for High-Flying Students
"What weather conditions might have warned our NY eagles to feed up on 1 February?" we asked last week.
Great suggestion! After years of capturing eagles, Peter Nye has a theory as to when & why they're likely to feed. Let's see what he has to say:
How to Respond to Today's Challenge Question
1. Address an e-mail message to: firstname.lastname@example.org
2. In the Subject Line of your message write: Challenge Question # 6
3. In the body of your message, answer the question above.
The Next Bald Eagle Migration Update Will be Posted on March 10, 1999.
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