YOU MUST TAKE YOUR BIRD TO AN AVIAN (BIRD) VET IN YOUR AREA. THESE COULD BE BECOMING MORE SERIOUS AND MAY NEED TREATMENT AT THIS POINT.
So, please make an appointment and take him in to see an Avian Vet to see what these tumours are. They could be infections which are now starting to bother him.
Anytime you see something like this on your bird, the first thing to do is have it analyzed by an Avian vet to see what it is.Some tumours are just fatty tissue and some are actual infections that need to be diagnosed and treated.