North American Butterfly Association
1 mile west of US route 1 on Mason/Dixon-MD/PA line.
Chester County, PA
Staying low in breezy, sunny conditions with a low of 28° and a high of only 56° and seemingly nectaring on Purple Deadnettle, Roadside Penny-cress, Hairy Bittercress and Speedwell. Even a mile plus walk in woods and edges produced no more sightings.
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