This
Year's Rubythroat Migration
Early, Late, or About the Same?
Is
this year's ruby-throated hummingbird migration ahead of, behind, or
about the same is was in 2006 and 2007? You be the judge!
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March
23, 2006 |
March
22, 2007 |
March
20, 2008 |
1. Click on each map to see a larger one.
2. Look at the most northern sighting on each map.
3. Look at the overall leading (northern) edge of the migration on each map.
- What differences
do you notice between the migrations from year to year?
- Does this
year's migration appear to be ahead of, behind, or about the same as
the 2006 and 2007 migrations?
- What factors do you think might influence the timing and pace of the migration? (Stay tuned in the weeks to come!)
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