I believe agressive towards people and especially dogs. It may be worse this time of year, but from reading the news it continues through the year. My sister in the East Bay reports it's ongoing where she walks the dog. My personal favorite is after a coyote grabbed her little dog off the leash Jessica Simpson offered a $500 reward! I don't think they took it for ransom! Cartoon biology. Behavior may start during denning/breeding season, but once learned it's likely to re-"curr". (pun intended) Personally it's ridiculous we're devolving to the point problem animals can't be dealt with.