Who's that sitting in my garden?

My heart skips a beat every time I see this visitor to the garden - not because I'm scared of cats, (I love cats) or that I'm worried for the safety of the garden birds, (they know he's there right enough) but because he is the image of my Toby puss who died nearly 5 years ago now. He's the same colour, size, bundle of fur, he has the same eyes and even the same white hairs coming out of the same ear... If I didn't know better, I'd think he was Toby's son (but Toby had the 'snip' when he was young). It used to upset me whenever he turned up, but now I see it as a blessing and think perhaps it's just Toby's spirit dropping by to let me know he's doing just fine.