Sep 25 2010
Today will be much cooler here in Pittsburgh, but on Thursday it was over 85 degrees and the wind gusted to 17 miles per hour from the west. That afternoon, to my surprise, I saw two monarch butterflies migrating southwest over Carnegie Mellon’s campus.
I’m sure the heat helped them. Maybe the wind helped too.
The monarchs made amazing progress, flying low below the treetops and aiming almost perpendicular to the wind. Both of them flew faster than I could walk.
Monarch butterflies migrate south about 50 miles per day, so with the help of this past week’s weather those two butterflies are well on their way to Mexico.
(photo by Marcy Cunkelman)
p.s. On September 18 there was an amazing flight of monarch butterflies along the East Coast. At Cape May they counted 1,592 in one hour.