Wondering if anyone else had had a hen with this kind of skin lesion? The grey bald area had been present for a few months - doesnt seem to be bothering her but has been traumatised by another hen or possibly her a couple of times in last month or so. It now intermittently bleeds then scabs over. Been treated twice with topical ivermectin. Thinking might be ringworm? Any thoughts or advice? Thanks in advance!