North American Butterfly Association
Hook Mt. - north of Upper Nyack
Rockland County, NY
Afternoon visit; clearing with sun & 65 high temp.; both Falcate Orangetips seen were male. Spring Azure appeared to be ‘violacea’ form. Rock cresses and other native flowers mostly not seen, still early for them. Walk of around 3+ miles on trail in total, but most butterflies not far from the summit on this visit.
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