Cat found

Very dark, medium length fur. Mostly blackish, but there were reddish tints, especially the tip of the tail. I saw claws on the rear paws, but didn't see any on front paws; might be declawed. Walked right up to sliding glass door looking in. Wary, but not scared of humans. Seemed very hungry and ate up food. Rolled around in catnip. Seems very much like an indoor cat, but nicks on ears and dull fur make it appear like it has been outside for a while.