Date: 09/11/2019

Number: 300

We have seen a roost site for a couple of weeks now but last night the number of monarchs was at least triple. Unsure of exactly how many there were here but at least several hundred.

Editor's note: contacted observer for more details on this sighting

August 27, 2019 was the first evening we noticed the roost. My wife first noticed them around 5:00 PM EDT.

The number is a complete estimation. We have several large pine and maple trees in our back yard. I did a rough count on the biggest group and then counted groups I could see. I have no idea if I saw all of them.

We have several large butterfly bushes and other flowering shrubs and plants around our backyard. There is usually something blooming in our landscape throughout the summer and we also have a patch of milkweeds. :)

The night of 8/27, the temp dropped to around 60 degrees. Last night (9/11) with the biggest numbers, the temp dropped to the upper 60s. (It helps to have a weather station on the property for archived data!) :)

We've seen the roost off and on over the last couple of weeks and usually the wind has been out of the SW or W on those evenings. We are learning as we go and never thought to look on the opposite side of the trees on the days that the wind is out of the N or NE. They are protected from the wind when we see them and the wind is out of the S or W. We did not notice any tonight but the wind is out of the NE.

Napoleon, OH

Latitude: 41.5 Longitude: -84.1

Observed by: Michael
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