Ravens in Hollywood

Conditions: sunny and warming (desert type air, even near the ocean)
Time: almost 11 a.m.
Two ravens encountered on trail heights, within sight of the large, concrete-topped reservoir; they sounded surprised, I think one had been on the ground just off the trail. They took to soarcling and quorking and slowly departed. Nice trail. Interestingly, very little in the way of tall trees except down towards Sunset Blvd. This area is much less affected by the sort of landscaping that GP tends to be saddled with. But the fact that only two ravens were seen or heard during the whole round trip leaves me holding on to my hypothesis that the human interventions in GP make that locale with a bigger population. How much of a factor that the biggest intervention - the zoo - makes, has yet to be investigated. I suppose I’ll have to pay my money and find out.