Migration
Map Comparisons
Robins and Hummingbirds
Robins are short-distance
migrants; they migrate north and south with the seasons, but remain
in the United States. Hummingbirds are long-distance migrants;
they fly up to 2,000 miles between their wintering sites in Mexico and Central
America and their breeding sites in the states and Canada!
-
Carefully compare the March 1 robin map with the ruby-throat
map below it.
- Do the
same with maps from March 15 and April 15.
- Next,
look across at the 3 robin maps; they show a 6-week progression. Do
the same for the hummingbird maps.
- Respond
to the journaling
questions below.
March
1, 2005 |
March
15, 2005 |
April
15, 2005 |
First
Robins Seen |
|
|
|
First
Ruby-Throated Hummingbirds Seen |
|
|
|
Journaling
and Discussion Questions
- Describe
2 observations you made about each species' migration.
- What do
the maps tell you about the differences between migration patterns for
robins (short-distance migrants) and rubythroats (long-distance migrants).
- What do
you think might trigger robins to migrate, and why?
- What do
you think might trigger hummingbirds to migrate, and why?
- What new
questions do you have?
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