March 5, 2019

Dear friends:

After seeing a serious decline at both colonies, our emotions come back up again! With the more normal weather conditions having returned we hope that the season could last some more days and, if lucky, a couple of more weeks.

 

A reader wrote to ask:

"Why do monarchs leave Mexico in the spring and migrate north? Is it because it gets too hot in Mexico during the summer? Does milkweed not grow in Mexico? Do they have to head where the milkweed supply is coming back in the spring? I have yet to find an article that explains why monarchs leave Mexico in the spring and I have googled this endlessly."

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