By all accounts, this is not turning out to be a great year for monarch butterflies.  The NY Times reports the smallest overwintering populations in Mexico in at least two decades, and the cold spring weather is not helping matters. An interesting animated map is available through the group Journey North showing how this year’s migration compares to the last few years’ migrations.  This kind of data is made possible through ordinary people with cell phone apps that allow anyone to report a monarch butterfly sighting. GPS based… Read More →