We have a cat call regularly in our garden, too. He's a lovely black and white one. Always has a collar with a bell on, but I think he must have devised a way of removing the collar as every time I see him he seems to have a new one on! He patrols our garden and cul de sac as if he owns the place and we have to watch him around the birds, as he has caught one a few times, plus the odd mouse.
Out yesterday for my daily constitutional, it was lovely listening to all the different birdsong and looking at the beautiful flowers in all the gardens. Not such a lovely day today, so if I do venture out, I will need to wrap up warmly. Not sure if I'll bother today.