We had 2 of those the past 2 years. They were practically identical except for a slightly less dark stripe on one chin. Until they grew up, then one got fat. We named them Red and Blue because of their collars.
They recently went missing at the same time, so I figure they either got into one too many trash cans, or they became Coyote food. I guess it's time to either head back down to the shelter, or find a cat to give our food to.