Monarch Fall Roost
Sightings report image

Date: 09/10/2023

Number: 10

First evening that I noticed some visitors settling in for the night. Counted ten total Monarchs; all roosting individually in three different silver maple trees. All were between eight and twelve feet off the ground and were located mostly on south and west-facing branches. Noticed the first a little after 6:00 p.m., with the last one coming in at 7:05 p.m. Sunset was at 7:11 p.m.

Weather today was excellent with sunny skies and variable-to-light winds. High was 81F after a low of 51F and daytime relative humidity levels dropped to around 35%. Dewpoint was around 50 and barometric pressure was around 1020mb.

Decent chances of rain in the forecast for tomorrow afternoon and night.

Bement, IL

Latitude: 39.9 Longitude: -88.6

Observed by: Thomas
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