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This Week's News:
- The Migration: Maps and Questions
- Photos of the Week: What Does Northern Mexico Look Like?
- Links: Monarch Resources to Explore
 Photo: Google Earth |
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Monarchs Crossing Mexico by the Thousands
At last! Thousands
and thousands of monarchs appeared across northern Mexico this week. Observers
in the state of Coahuila say this is the best migration they’ve
seen in years. Señora Rocío Treviño, who coordinates
Mexico's migration-tracking program Correo Real, forwarded the
news. She wrote late Tuesday night after her spectacular monarch-watching
day:
October
20: Saltillo, Coahuila
Today monarch butterflies adorned the sky and fields across Coahuila like
we haven’t seen for years. From Cuatrocienegas to Saltillo people
reported thousands of butterflies. I went out into my garden this morning
and counted an average of 60 per minute for nearly two hours.
This evening, I took my granddaughters to a stream in the "Boca de
Leon" canyon to search for roosts. At last, there were clusters of
some three thousand butterflies and something incredible that I have never
encountered in all my years--a monarch with a tag! Unfortunately,
I didn’t have my net so couldn’t catch the butterfly to read
the tag but I did take a photo.
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Can you find the monarch with the tag (etiqueta)?
Take a look!
How Many Monarchs per Hour?
Try some monarch math! Señora Treviño counted an average of 60 monarchs per minute flying over Saltillo, Coahulia on Tuesday for nearly two hours.
- How many monarchs per hour did she see?
- In total, how many monarchs flew over during the two-hour period?
- Read Rocio Treviño's report in Spanish.
Monarchs coming down for the night to roosts in shrubs (arbustos) in Coahuila, Mexico. |
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Señora
Treviño's granddaughters (nietas)
helped to find the roosts (perchaderos).
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- Exploring Maps: Follow the Migration Trail Through Northern Mexico (by Dr. Bill Calvert)
- Exploring Maps: The United States of Mexico;Los estados unidos de Mexicanos
- Slideshow: The Annual Cycle of the Monarch Butterfly
- Slideshow: The Life Cycle of the Monarch Butterfly (English/Spanish)
- Journey North for Kids: Monarch Butterfly Resources for Children
- Collecting Data: How to Monitor Fall Migration
- Observing Fall Habitat: How is Monarch Butterfly Habitat Changing?
- Encouraging Inquiry-based Research: Categorizing Questions
- More: Monarch lessons and teaching ideas
Monarch Butterfly Migration Updates Will be Posted on THURSDAYS: Aug. 27, Sep. 3, 10, 17, 24, Oct. 1, 8, 15, 22, 29, Nov. 5...or until the monarchs reach Mexico!
The Next Monarch Migration Update Will Be Posted on October 29, 2009.
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