First Monarchs Have Arrived At Wintering Sanctuaries
During the first two weeks of October, south winds prevented migrating Monarchs from making a lot of progress on their flight southward. Cold fronts were weak during this time, and wind blew from the north infrequently. On Oct.12 this persistent weather pattern broke, headwinds subsided and thousands of Monarchs were seen migrating through Texas. By Oct. 20 the first Monarchs entered Mexico and by the 23rd the first butterflies had reached their wintering grounds. Follow their progress as they continue to stream across northern Mexico, headed for their sanctuaries, at http://www.learner.org/jnorth/maps/monarch.html.
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