News Update: April 16, 2009      Name ______________________ 

Look at red section on the hummingbird distribution map (below, left). It shows where rubythroats breed. Next, look at this image of North America taken from space during the rubythroat breeding season.
Ruby-throated Hummingbird Map Questions
(Teachers: Maps are hotlinked for larger projection on smartboard or screen.)


Image: NASA

What pattern do you notice when you compare the maps?

How would you explain why rubythroats don't breed any farther west than the distribution map shows? (Hint: Think about their food sources.)
Now look at today's ruby-throated hummingbird migration map. Draw or describe where you think rubythroats will travel in coming weeks.