What
Do the Maps Tell Us?
Look at the first map below. It shows where
ruby-throated hummers have been reported in the past month or
so.
Now look at the second map. The green and orange colors
show where most ruby-throated hummingbirds spend the winter.
Think:
Why were these reported sightings unusual? How do you
think the rubythroats survived so far north of their tropical
winter grounds?
|
|
The
circles show where observers reported ruby-throated hummingbirds
in January and early February. |
This
green and orange on this map show where most ruby-throated
hummingbirds spend the winter. |