Date: 10/09/2015

Number: 1000

Just too many to even guess. Thousands of Monarchs were observed roosting at 6:00pm and 10.09.2015 (lat 32.225731 long -101.473348 according to latlong.net) on the edge of heavy woods.
We were coming off a couple rainy days and the mesquite trees still had a lot of moisture on them as there was virtually no wind.
Weather was overcast most of the day 10.10.2015, no wind and a bit drier. Saw much much fewer monarchs roosting in the same area as previous. Sun broke through at 1:00pm and wind picked up to 10mph from the south. It was hard to see any monarchs in the open sky but they could be seen moving through the heavy woods, sheltered from the wind.
The overnight temps on these nights was in the lower 70’s.
No known nectar source but moisture was plentiful.

October 13
I think I’m only getting the stragglers now and haven’t seen more than maybe 100 roost since 10.10.2015.
I believe the weather system that moved in pushed my bunch south.
My neighborhood plays host to a lot of dove. This morning was very cool and there were hundreds flying at the same time and on the power lines. that my indication of weather pushing flying wildlife from north to south.

Editor’s note: Observer confirmed 10/9 is the night the roost formed.

Big Spring, TX

Latitude: 32.2 Longitude: -101.5

Observed by: Jay
Contact Observer

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