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Migration
Update: February 15, 2011 |
Please
Report
Your Sightings! |
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As
record-breaking blizzards swept across the nation, reports of migrating
robin flocks
flew across our maps. Tens, hundreds, even thousands of robins—were
on the move. Find out what observers saw—and look for reasons why
these winter wanderers travel in flocks.
This
Week's Report Includes:
- The
Migration
- Focus:
Why Do Robins Form Winter Flocks?
- Research
Question and Links: Explore!
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Image
of the Week |
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The
Migration: What's
Happening Now & What to Watch For |
What's
Happening Now
Robins are nomadic during the winter months.
These winter wanderers move in response to food supplies and
harsh weather. Most robins travel in flocks. Each time a new
snowstorm
hit during
the past two weeks, people reported waves of robins—tens,
hundreds, even thousands of robins—on the move. According
to observers, most of the flocks are concentrated in the southern
states and along the Atlantic coast. And yes, robins are a migratory
species, but their migration is
not a
simple
shift southward. This is why changes in our migration maps seem
haphazard in late winter. There's a lot to discover about robin
migration!
What
to Watch For
Watch for a shift in robin behavior as temperatures warm
and the breeding season approaches. Males will sing the robin's
true song when they arrive on their breeding
grounds and become territorial. A robin's song says:
"This is my territory,
so
keep out!"
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Focus:
Why Do Robins Form Winter Flocks? |
Read
Discoveries Made by Citizen Scientists
Robins are on the move! Observers reported more large waves of robins
during the past two weeks than other types of robin sightings.
That will change,
but
first
let's see
what we can learn from observers' comments about those waves.
How could traveling in waves or groups help robins survive?
1.
Collect
the facts in these observation reports from citizen scientists.
2. Study
the photos: Winter
Robin Gallery.
3. Respond to a journal question.
Learn
More from our Robin Expert
For robins, traveling in flocks is important in wintertime.
Do you wonder why males don't sing their
true song while in flocks — but usually wait until they're back
on territory? For more about flocks, see:
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Research
Question and Links: Explore! |
This
Week's Research Question:
What question can you ask our robin expert that has never been
asked before?
Other
links to explore:
Please
Report Your Sightings! |
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Robins
migrating in Waves
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Your
first sighting of Earthworms |
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Wayne
Kryduba
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The
Next Robin Migration Update Will Be Posted on March 1, 2011.
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