[Wolfwoman]

Beautiful dogs! I've had more than a few labs in the past, never heard of a silver lab, something someone else made up along the line, there are only three true lab colors. I think what you're seeing is 'brindling' in color, which isn't correct. Sometimes labs can be bred with other breeds of dogs and the colors come thru but the dogs will STILL look, act and hunt like a lab because of their strong breeding for so many generations.

The Labrador Retriever coat colors are black, yellow and chocolate. Any other color or a combination of colors is a disqualification. A small white spot on the chest is permissible, but not desirable. White hairs from aging or scarring are not to be misinterpreted as brindling. Black--Blacks are all black. A black with brindle markings or a black with tan markings is a disqualification. Yellow--Yellows may range in color from fox-red to light cream, with variations in shading on the ears, back, and underparts of the dog. Chocolate--Chocolates can vary in shade from light to dark chocolate. Chocolate with brindle or tan markings is a disqualification.