Of course they do. This is a blatant come-on for the USA National Phenology Network. As I wrote in Something New to Do With Your Lilacs, USA NPN is looking for citizen scientists to record observations of common plants at their website. The observations will be put in a database that will track the effects of global warming on these species. How will plants and animals adapt? Will they bloom earlier? Show up in our area earlier? This will be one way we'll find out.
I was just over at the site and they've redesigned it to make it easier to use, and have added selected animals to the species you can monitor. I've added bumblebees to my lilacs, but the Illinois list includes herps, birds and even white-tailed deer (hard to miss in my neck of the woods!).
I urge anyone in the U.S. with a concern about global warming and a garden or access to an outdoor area, wild or not, to take part in this effort.
BTW, my lilacs have leafed out. How are yours doing?