Date: 09/24/2020

Number: 150

Population has been building here since last cold front. They have been roosting here for almost 2 weeks.

The actual date for the start of the roost is hard to pin down. About 2 weeks prior to this post, the Monarchs began to come in small groups. Every day I noticed more had arrived. They just arrived a few more each day until the numbers accumulated.

The 150 count is very rough. There were many flying at any one moment and I rough guessed it.

We have a few nectar sources in our yard. Zinnias and sedums were blooming. There are also sunflowers and smartweed that blooms every fall nearby.

I would observe the Monarchs in later afternoon and evening. They seem to prefer some red cedar trees we have but they were also using Bur Oaks. There were shielded from the wind when they land in the cedar trees.

To kind of finish this report about 1 week ago (right after this post) we had a cold front come thru and change the air mass. The Monarchs were gone and so were the Hummingbirds.

Hesston, KS

Latitude: 38.2 Longitude: -97.5

Observed by: Raymond
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