Listservs and arrival dates

From Birdfellow, a post about arrival and departure dates. Are these dates getting more extreme in reference to past dates due to climate change? Or is the more-connected birding world of today (primarily through Listservs) the reason for these changes?

http://www.birdfellow.com/journal/2011/03/11/how_listservs_may_be_altering_no…

Advertisements