My new trio of white wyàndotte bantams have some little black pieces, that look very much like blood spots on their combs. I have no other birds presently, and if it is mites I want this felt with before my spring chicks get here. One question I do have, if I treat with ivarmectin, can I still try a practice hatch with the eggs before my expensive eggs get here? The birds don't seem itchy, and it has been cold so spots of frost damage from wet fermented feed are possible, but I'm better safe than sorry, right? Any advice on the best way to treat for bloodsuckers... Permanently? Burning everything to the ground is off the table, I am already quite attached to these three.