Advisory Circular LA
Posting about aircraft circling in the Los Angeles metro area, from Santa Clarita to Anaheim.
Commonly seen aircraft
News, police, fire, etc. NG, Dynamic Aviation.
Interesting aircraft
“This Plane Wasn’t Snooping On Protesters In Los Angeles, It Was Dropping Irradiated Bugs”
Helpful resources
@tropicostation (Scott Lowe) spots interesting aircraft over the LA area, and takes high-zoom photos of a lot of them. Scott also wrote a guide to LA area helicopters.
The Los Angeles localwiki has a page on identifying helicopters you might see in Los Angeles.