The color looks dun and it does show somewhat of a pattern. See if it shows a tail bar as the tail grows out. With a tail bar, it is not spread, without a tail bar, it is either spread or ash but sure doesn't look ash to me.
Dun is dilute spread blue. I see people mention dun check but really there is no such thing as dun check as it's pattern should be masked by spread. However, some spreads, especially if only het will show the pattern that is underneath, as all pigeons have a pattern, t check, check, bar or barless. Normally spread masks this but not always completely.