Thousands were beginning to roost for the night beside a clover field. I have heard people talking about them being there at least over the last week.
[Additional information contributed by observer, added by Journey North, 09/16/21]:
Nighttime temps over the last week were mostly in the mid to upper 60's F*. The low point was 52* F on Sept. 10. And since 9/14, when I visited the site, the nighttime temps have dropped to the low 60's.
The monarchs were roosting in pines, small oaks, and other deciduous trees on the sheltered side of a path (almost tunnel-like) between rows of mostly pines and cedars, with fairly young deciduous trees mixed in.
I don't know when they first appeared. as far as I know, they are still there.
Quantity was an estimate
Latitude: 40.1 Longitude: -83.5
Observed by: Louise
The observer's e-mail address will not be disclosed.
Contact will be made through a web-based form.