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Observation notes: Nectaring on yarrow. There is a good population of sooty hairstreaks at this location.
Verified by: Ken Davenport
Verified date: September 26, 2015
Coordinator notes: The Sooty Hairstreak was recently split into 2 species. See Andrew Warren's Oregon book available (probably online as well) from Colorado State University for placement and recognition of the 2 entities. I had to consult that to know which of the two you had-Ken Davenport