It's not just Richmond. I live in Berkeley, the next town to the south. We've had a massive turkey influx into our neighborhoods over the last few years. Oakland too. (cue the obvious jokes.) They're coming down from the very large regional park that runs through the hills just to the east of all three of these towns. For me, the strangest thing is seeing a large flock walking across very traffic-heavy streets just under the BART tracks near San Pablo Ave., about a quarter mile from REI. This is a flat out urban area–but I've seen them there several times over the years as I drive to work. Hard to know what they're eating and where they're roosting.
About a year ago I was walking up towards Wildcat Park on residential streets. A big Tom was standing in a yard, along with a single cat frozen in place, one paw up, in a posture of attack. I watched the cat and the indifferent turkey for about three minutes. It was clear that this was the cat's Moby Dick moment, but it just couldn't bring itself to actually carry out its intention. Wisely so.
Deer, skunk and racoon, along with many raptors, visit my neighborhood all the time. Now turkeys too. I love it! (Well, not always the skunks.)