they return every year,there is hundreds of monarchs or more the all looking for a tree that was cut down over ten years ago for a drain field installation.the butterflies keep landing and taking off trying to find the right tree it appears.the original tree plus 3-4 others used to be completely covered in monarchs.this has been going on since August 29 - today September 6.
[Data Verifier Note: contacted observer for more information about this sighting]
Heron Lake, MN
Latitude: 43.8 Longitude: -95.3
Observed by: Paul
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