At this time in late April, Painted Ladies have been abundant in northern California and southern Oregon for at least the past two weeks. Some of the butterflies may have been continuing to migrate northward in southern Oregon, but this activity was not definite - the butterflies were nectaring on dandelions, and most seemed to be flying northward when they left the flowers, but the direction wasn't as obvious as it had been in late March.
Are other people elsewhere in northern California and the Pacific Northwest seeing more Painted Ladies this spring? What's happening in Portland? In Seattle? Elsewhere? With more of us reporting, we can get closer to figuring out the actual extent and timing of this Painted Lady irruption.
-- Royce Bitzer, April 28, 2015