Grav I doubt it is/was.  Cats know when they're onto a good thing.  More likely someone whose time was up.  You could always post a message on local Craigslist/whatever to see if anyone is missing him/her/it.  Is there a rescue shelter who might know of reported missing moggies?
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					Originally Posted by  Clodfobble
					 
				 
				I figure without a collar, they have no claim. 
			
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 could be microchipped.  I am not a fan of collars on cats.  Neither are cats in the main, from what I have seen.