Quote: Thanks for having an open enough mind to double check. It is very rare, so I'm not surprised it's not commonly heard of. You have to look back into 18th century texts to find any references to them, and even then they state they're quite rare. Quote: Yes, I am aware of this. I believe they're mites, but the old name 'blue pigeon lice' is the only one I have come across for them. Quote: They're minute parasites that correspond to the 'blue pigeon lice' described by Juliette de Bairacli Levy in her book 'The Complete Herbal Handbook for Farm and Stable'. My searches for modern info on them also yielded nothing, but that doesn't change the fact that they are definitely not what feline lice were described as, and definitely were exactly what 'BPL' were described as. It is not a disease, the parasites and their eggs were visible; just because something's rare doesn't mean that it does not exist. Quote: Thanks, and I look forward to the update with the diagnosis. Best wishes with that. BPL are extremely rare but if it is that, don't worry, they're not hard to treat once you have identified them correctly. Hope it's nothing serious.