Monarch Butterfly Migration & Milkweed Phenology Project

El año 2021 cierra con un exitoso porcentaje de población y un importante movimiento de una colonia a otra en los Santuarios “El Rosario” y “Sierra Chincua”.

12/21/2021 Enjoying Sierra Chincua Sanctuary

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12/21/2021 Not All Monarchs Survive Winter

Read more about 12/21/2021 Not All Monarchs Survive Winter

12/21/2021 An Amazing Sight

Read more about 12/21/2021 An Amazing Sight

12/21/2021 Walking to the Colonies

Read more about 12/21/2021 Walking to the Colonies

Read more about 12/21/2021 Letter From Estela Romero: Peak of Overwintering Season

Published: 12/22/2021

Dear friends,

Year 2021 closes on a hopeful note with monarch population numbers estimated to be high and with promising monarch behavior as colonies consolidate at the El Rosario and Sierra Chincua Sanctuaries.

Read more about 12/17/2021 2021 Program Highlights

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2021 Program Highlights (Page 1)

2021 Program Highlights (Page 2)

Estela Romero and Ellen Sharp provide updates from the Monarch Butterfly Biosphere Reserve in Mexico. Gail Morris shares more good news from overwintering sites in California and highlights monarch activity in Arizona. Plus, a special invitation to report winter monarch sightings in the Southeastern U.S.

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01/01/2022 A News Tidbit for the First Week of 2022

12/21/2021 Enjoying Sierra Chincua Sanctuary

12/21/2021 High Numbers

12/21/2021 Not All Monarchs Survive Winter

12/21/2021 An Amazing Sight

12/21/2021 Walking to the Colonies

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12/14/2021 Large Colonies