Monarch Migration News: July 2016
By Elizabeth Howard
It's peak breeding season. The population builds with each new generation and will reach its peak when fall migration begins in August.

Monarch Butterfly

"This is our first sighting of a monarch this year!" reports Isobelle Fox on June 23rd in Framingham, MA.

News: Peak Breeding Season
Monarchs live for only 2-6 weeks during the breeding season. All energy is focused on reproduction. Females search for milkweed to lay the 400-600+ eggs they can produce in a lifetime. Males patrol milkweed in search of females for mating.

Four Generations
Monarchs can produce a new generation in about 30 days, resulting in four generations during the typical breeding season. The population grows with each new generation so monarchs become increasingly noticeable as the summer wears on.

The Migratory Generation
This fall, the monarchs that migrate to Mexico will be 4th generation butterflies, the great-great-grandchildren of those that left Mexico last spring. Monarchs born after mid-August will likely be part of the migratory generation. Get ready to watch for signs that the monarchs are on their way to Mexico again.

Monarch Butterfly Egg
Brenda Dziedzic

Summer Tracking
Report monarch eggs, larvae, and adults this summer—and tell us how many you see.

What to Report

Spotlight: Monarch Cycles

Monarch Butterfly Life Cycle Monarch Butterfly Annual Cycle Monarch Butterfly Calender Wheel for Generations
Life Cycle Annual Cycle Count Generations
Report Summer Sightings
Monarch butterfly migration map Monarch butterfly migration map Monarch butterfly migration map
report | map | list
report | map | list
report | map | list
Monarch butterfly migration map

What to Report


Summer Tracking
Report monarch eggs, larvae, and adults this summer, and tell us how many you see.

Evaluation: Share your thoughts!
Please take a few minutes to complete our Annual Evaluation. With your help, we can document Journey North's reach, impact and value. Thank you!

Journey North Evaluation
Next Update August 1, 2016