I think it might be...may depend on color of tail fluff....may also depend on who is doing the judging and where said judging is being done.I've perused this Welsummer thread (but not all 1000 pgs!) to find adult male pics to see if the white at the base of the tail is a DQ or not? I read someone's Welsummer site that said they are breeding to eliminate the white feathers at the base of the tail. I know Brown Leghorns have the white and that Welsummer have Leghorn breed history so why are some trying to get the white out of the Welsummer? To differentiate them from the Brown Leghorns? Just wondering. I personally like the bit of white as it traces back to the Red Jungle Fowl but that's just me. Thx for any reply.
Ask here: https://www.facebook.com/groups/welsummerclubofnorthamerica/