American Robin Migration Update: March 16, 1999
Today's Report Includes:
Waiting Eagerly in the North
That robin didn't follow the rules that Sand Lake School in Anchorage Alaska does. Mr. Sterling, a teacher, there, wrote "When it's colder than minus 10 degrees F, students don't go out to recess if either the ambient temperature or the wind-chill is colder than -10 F. I believe we went for an entire month with our noses pressed on the glass of our classroom. I've still got the smudges to prove it." There have been a few robins seen in some spots in Anchorage this winter, but none yet reported for this spring. Last year Mr. Sterling's class saw their first on April 6.
In Soldanta, Alaska, Mr. Vedders's class is getting impatient for ANY evidence of spring. In response to our query whether they'd seen any yet, he wrote, "I WISH!! We are still having indoor recess!"
Northern Observation Posts
To ensure that the first robins to reach far north are properly noted and welcomed, Journey North has set up seven observation posts where students will report their first robins. These posts are in
Announcing JN's Annual Early Bird Contest!
(Challenge Question # 8) "See if you can find these seven observation posts on a map. When do you predict the first robin will appear at each of the seven Northern Observation Posts? Send us your predictions!"
Do Early Birds Get the Worm?
Discussion of Challenge Question # 6 and #7: We gave the following information: One banded wild bird, "Robin A," lived to be 11 years, 8 months old. A bander found that "Robin B" weighed 84.2 grams. Then we asked, "If Robin A was hatched in May, what month did it die in? What is the smallest number of times this robin was handled by humans? How do you know this?" and "What is Robin B's weight in ounces? How many robins of that size would it take to balance a 100-pound seventh grader?"
Hooray for Chris and Hannah in Ms. Thurber's fifth grade class at Ferrisburgh Central School! They put on their
thinking caps and reasoned through both problems! They wrote in response to # 6: If Robin A was hatched in May,
he died in January. We knew that we didn't have to worry about the eleven years, we just added 8 and 5. That made
13 -since there are only 12 months in a year, that starts the next year, which would put the death in the month
of January. And the least amount of times that Robin A was handled would be twice (once when he was banded and
once when he was dead to take the band off).
How to Respond to Today's Challenge Question
Answer only one Challenge Question in each e-mail.
The next Robin Migration Update will be posted Tuesday, March 23, 1999.
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