Brilliant document in San Diego...
http://www.sandiego.gov/fireandems/pdf/brushpdf.pdf
Read the fine print...
Quote
NOTE: Brush management activities are prohibited within coastal sage scrub, maritime succulent scrub, and coastal sage-chaparral habitats from March 1 through August 15, during Gnatcatcher nesting season, except where documented to the satisfaction of the City Mayor’s Designee that the thinning and pruning would be consistent with conditions of species coverage described in the City of San Diego’s MSCP Subarea Plan.
If you can’t model the past, where you know the answer pretty well, how can you model the future? - William Happer Cyrus Fogg Brackett Professor of Physics Princeton University