Date: 10/28/2020

Number: 1000

Butterflies & Their People forest guardians made the first sighting of monarchs arriving in Cerro Pelon in the Biosphere Reserve at 1:37 pm on October 23. By October 28, enough monarchs had arrived to start forming their first substantial overnight roost, documented by the guardians near el Alambre on Carditos on Cerro Pelon at 3:47 pm. Skies were cloudy and temperatures dropping. The guardians suspect that this roost will be a temporary one. Monarchs shift roosting locations from higher to lower climes throughout the season: we will be closely documenting these developments in virtual butterfly experiences, described on butterfliesandtheirpeople.org.

See video :
First roost on Cerro Pelon 10/28/20

Donato Guerra, MEX

Latitude: 19.4 Longitude: -100.3

Observed by: Ellen
Contact Observer

The observer's e-mail address will not be disclosed.
Contact will be made through a web-based form.