We’ve talked about Nature In the City and its negative attitude to trees.

Today’s post is positive: They’re leading a San Francisco Butterfly Count, in collaboration with the North American Butterfly Association. We believe it will be okay to count non-native butterflies…

If you’re interested in joining, it starts at Randall Museum on Monday, from 9 a.m. 5 p.m. The details are here. Bring lunch, and contribute $3.

[Edited to Add: For the count results, go here.]