How Far to Mexico from the Bolivar Peninsula, Texas?

About this photo: These monarchs were among the millions that traveled down the Texas Gulf Coast last week in what is being described by Mike Quinn of Texas Parks and Wildlife as "perhaps the most massive coastal migration in a decade." A cloud of monarchs extended at least 200 miles along the coast, from Houston to Corpus Christi. People who witnessed the event continued to send in their sightings for the following 10 days. On the same day that this photo was taken, a man who was 120 miles offshore on an gas/oil platform saw large numbers of monarchs passing, suggesting many were blown out to sea. (Monarchs typically migrate along coastlines and avoid large over-water crossings.) Here is a series of weather maps that show the conditions at the time of the massive migration.

Among the lucky observers were Becky and Pepper, who were surf fishing on October 25th on the Bolivar Peninsula, in Texas (29.5 N, -94.5 W):

"We noticed millions of butterflies coming in to land on palm trees. The palm trees were literally covered with beautiful monarchs. It was incredible. They were quickly filling up the leeward side of some palm trees and, when there were no leeward spots left, they would begin to fill another tree."

Journaling Questions

  • Why were the monarchs choosing the "leeward" side of the trees?
  • How long do you think it will take for this massive wave of butterflies to reach the overwintering region? Use the map of peak migration to make an estimate.

Do you have a picture of a monarch that's on its way to Mexico?

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