Tracking spring monarch migration and milkweed phenology 

Published: 02/02/2022

Dear friends,

Despite the travel restrictions across the world, people are still visiting the Monarch Butterfly Biosphere Reserve to view the extraordinary phenomenon of overwintering monarchs in Central Mexico. 

Published: 02/02/2022

By Bob McClennen

Monarch season started for us at the end of July when we developed a routine for doing a monarch count at Cape May Point. We found that there were quite a few monarchs present even in late July and early August, although these were probably breeding monarchs, not migrating.  At least until the middle or end of August.