March 20, 2018 by Ellen Sharp

The monarchs of Cerro Pelón have finally definitively departed. The CEPANAF rangers and Butterflies & Their People arborists saw some still clinging to trees on the afternoon of March 18. By the next morning, the trees emptied out and the air filled with butterflies. By midday of the 19th, they were all gone. Many seemed to have stopped over in El Rosario on their way out, where their numbers swelled over the last few weeks.

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