Just picked up some new birds the other day and i just noticed this whatever it is on them. The pic isnt the best cause its with my phone they she was wiggling around, but, it looks almost like she has salt/ crust stuck to her. The other one has it too but not as bad as this one does. And she might have some "snot" maybe. And I think she has some mites too. But she seems ok and doesnt scratch at it or anything, doesnt seem to be bothering her. Could it just be caked on dirt that a bath would solve? And a dusting of seven dust or DE should get rid of the mites right?