News Update: May 10, 2007         Name _____________________ 

Ruby-throated Hummingbird Map Questions
(Teachers: Map is hotlinked for larger projection on smartboard or screen.)

Look at the band of dots (dark orange-red) that show hummer reports from the last 2 weeks. Within what major lines of latitude do most of the reports fall?

There are about 69 miles between each degree of latitude. Can you calculate about how far the Rubythroat migration traveled in the past 2 weeks? In the past week?

Scientists say that on average, the Rubythroat migration travels at about 20 miles per day (or 280 miles per week). How does this compare to your answer?

What factors could affect the rate the migration moves ahead in any week?