Cold sore on corner of mouth
I have a Goffin Cockatoo (Romeo) and a Blue Quaker (Tweety). They are housed during the day in an Extra Large Parrot Cage during the day. They retire to their bedrooms at night (they each have their own small pet carrier). I recently noticed that Romeo has what looks like a cold sore on the left corner of his mouth. I see him licking the corner, which can't be helping it heal (just like a little child ;-) )
Do birds get cold sores or would this be something else?