When I was a kid we actually had more purple finches than house finches on the Cape or at least where I was on the mid-Cape. These days the house finches are far more plentiful and have adapted well to suburban life. Like the house sparrow and the starling, the house finch is a transplant, not a native. Unlike the former two birds house finches are generally well liked by back yard bird feeders, most likely due to their lively song and generally pleasant dispositions and personalities.
House finches tend to travel and feed in groups. This male was seen with a flock of about a dozen other house finches in the bushes around the Coast Guard Beach parking lot. You can find lots more information about house finches and also see the similarities between them and other finches by clicking here.