1.
Use a marker or crayon to draw along the edge of the ruby-throated
migration sightings.
2.
Now use a different color to draw along the edge where you predict
the migration sightings will be in one week (April 7).
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Today's
ruby-throated hummingbird migration map: March 31, 2010
![](https://s3.us-east-2.amazonaws.com/journeynorth.org/images/graphics/humm/maps/ruby033110_300.gif) |