Fall Migration Starts this Month!
August 1, 2017 by Elizabeth Howard
  The magnificent migratory generation is developing now. Watch for the 1st signs of fall migration in mid-August. Get ready to track the trip to Mexico!  

Monarch Butterfly Caterpillar on Milkweed

Elizabeth Howard

News: Here Comes the Migratory Generation
By mid-month, the first members of the migratory generation will emerge in the north. These butterflies are the great-great-grandchildren of the monarchs that left Mexico last spring. They have a long and challenging life ahead: they will migrate to Mexico this fall, survive the winter, and return in spring 2018 to begin the breeding season anew.

Monarch numbers reach their peak by fall migration. At no other time of year is the population larger. Monarchs produce four generations during the typical breeding season and the population grows with each new generation.

Report All Sightings
When you see a monarch, we want to know. Please report your sightings of monarch adults, eggs and larvae. Start now — and continue to report until you see your last monarchs of the season. Fall migration is about to begin!

Monarch Butterfly

Reaching Peak
Elizabeth Howard

What to Report
When you see a monarch, we want to know.
Monarch Butterfly Life Cycle Monarch Butterfly Annual Cycle Monarch Butterfly Calender Wheel for Generations
Life Cycle Annual Cycle Count Generations
Report Your Sightings
Report monarch eggs, larvae, and adults during the breeding season — and tell us how many you see.
Monarch Butterfly Egg Monarch butterfly migration map Monarch butterfly migration map
report | map | list
report | map | list
report | map | list
Next Update August 24, 2017