6 miles north of Piper City in a 90 acre buckwheat field couldn't count thousands maybe tens of thousands.
[Additional information, added by Journey North, 09/16/21]:
nectaring on buckwheat in the evening in a 90 acre field of buckwheat; nearby neighbor had monarchs roosting in their pine trees
Piper City, IL
Latitude: 40.9 Longitude: -88.2
Observed by: Steve
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