first time with roos. Both banty, one a mix, one a silkie. The mix has a bright yellow-line "dust" on the outside of the earlobe wattle (not sure if this is the right word, but the little extra flap of wattle/comb material that hangs back by the ears). The silkie has a dusty blue dust/film on his ear lobe. Is this normal? Some kind of fungus? It doesn't wipe off with my finger, although I didn't try real hard. I don't remember ever seeing this with hens, and I'm new to roosters.