|Common Raven, Mission Hills Regional Park, San Diego, California, October 4, 2013. Photo by Greg Gillson.|
I have also noted that the ravens in San Diego are obviously smaller than birds in the Pacific Northwest, less wary (downright friendly), and have a higher voice. The call is rough, but not nearly as deep or raspy and croaking as ravens elsewhere. In other words, ravens are more similar to crows in the SW than elsewhere in North America. Ravens are told apart from crows by the raven's wedged tail, heavier bill, deeper raspy voice, and more hawk-like flight style. See this ID and range information from eBird.