yellow crust

A few days ago I noticed Apollo, my green cheek conure, has a spot of crust around his right eye. But the photos I’ve seen when looking up crust around bird eyes seem much more severe looking than what is on Apollo’s eye. Attached are some photos, I don’t think it’s red/looking irritated...

Hello, Thank you so much for your time. I'm really worried about my baby. Yesterday I noticed yellow crust around the eye corners of my budgie for both eyes. He's around one year old, otherwise healthy and playful. I'm worried that this might be mites or a fungal infection which may lead to...