07 September - 13 September 2021

Published: 09/15/2021

Note: Observations highlighted in this report are from September 3–9. To explore more recent observations, check out "The Leading Edge" section of the news update and explore our maps.

Published: 09/15/2021

Note: Observations highlighted in this report are from August 30–September 6. To explore more recent observations, check out "The Leading Edge" section of the news update and explore our maps.

Dear Western Monarch Friends,

North America has two migratory populations of monarch butterflies. This collection of articles and resources focus on the eastern population.

Published: 09/08/2021

Dear Western Monarch Friends,

Published: 09/08/2021

31 August - 06 September 2021

24 August - 30 August 2021

17 August - 23 August 2021

10 August - 16 August 2021