Citizen scientists plant tulip test gardens in places with different climates. Explore climate variables to predict how different conditions will affect where and when tulips emerge and bloom.

Most Ruby-throated Hummingbirds winter between southern Mexico and northern Panama. The first spring migrants arrive in the U.S. Gulf States. What routes do they take? If they fly over the Gulf, how do they survive a 500-mile flight with no food or rest? When do the first ruby-throats reach their breeding grounds? What habitat conditions do these tiny birds need when they arrive?