I've been communicating with the Cornel School of Ornithology about all things Ravens, and they have provided me with some interesting information: since 1970, the Raven population has increased over 7000%! That's a staggering figure! They attribute this to our human population growing, producing more accessible garbage, and as the Ravens are scavengers, they are taking advantage. I also wonder if the removal of using DDT has contributed. Around the same time, our local brown pelican population was in danger of extinction as DDT was prevalent in our environment and was causing the pelican eggs to be too soft to produce viable young. Since ridding our environment of the DDT, the brown pelicans have come back mightily.
Regardless, ravens are taking over our entire west coast - and it is a bit ominous in my book....thus my paintings.