They do appear to be a recessive morph, though many of the normal siblings do have very dirty bellies, high yellow, and clover shaped headspots much like the male pictured on the left. So it is possible that we are seeing a very subtle incomplete dominant mutation with the tundra being the super form.
The wild type in the group is from an unrelated clutch.
While it is possible we are dealing with a new line of existing morph, none of the similar ones share all of the characteristics so far. Only lots of time and breeding will tell.
