Date: 03/20/2007

Number: 1

Tuesday, March 20 we found an overnight site in the San Juan river, in the entrance to San Juan del Rio, Queretaro, and followed the monarchs by Bernal, Cadereyta, Villa Guerrero, Qro., and Zimapan, Hidalgo. All the time, the butterflies were flying to the north.

Reported by Mexican field biologists Ivan Limón and Raúl Zubieta who are following the butterflies migrating northward. "We hope to find the migratory path and see what species of flowers the butterflies are nectaring on along their route to Texas, and whether they are seeking water holes along the way," says Dr. Lincoln Brower who is advising the trip along with Dr. Isabel Ramirez of UNAM.

Note: While these are not "first" sightings with any certainty, we are including them here as an important record of spring monarch migration sightings in northern Mexico.

Villa Guerrero, QUE

Latitude: 20.7 Longitude: -99.6

Observed by:
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