Garden Visitor

Here's Red according to his tag. A neighborhood cat I presume who has recently taken to hiding in the bushes at the back garden. I'm wondering if it's to do with me feeding the birds that these visitors are hanging around. There's another black one who I've seen pawing at the bushes. Must be a nest in there. I chase them cause I'm not a cat person at all. As I type this another of them has arrived excuse me while I go chase this one.