A few days ago I noticed my budgie bluebell's beak had some crusty stuff formed on it and I'm still unsure if it's scaly mites or something else. He's acting normal and is behaving like his usual self. Also I read that sometimes budgies molt their beaks and he's been having an extremely long molt he shed his flight feathers and couldn't fly for a few days then grew them back and now he's perfectly back to normal and can fly. But I'm still worried by the crusty stuff on his beak. Is that the scaly mites or just happening because he's molting? And the treatment is the ivermectin right? What's the procedure using the medicine on him? Thankyou so much for the help this website is a life safer!