heavy breathing

Pecan, my female cockatiel has been sneezing a lot. Most of of them time when she had just woken up. Her nostrils seems to be blocked, and when she breathes you can hear sort of a rumble from her along with her body sort of swaying. Not sure wether this is normal or not. Should I bring her to a vet?

Hi, my avian vet can not figure out why this whitish plaque keeps growing in the back of my sun conure's oral cavity bordering on the nasal cavity. As it builds up, her breathing becomes labored and I can hear it. The vet has sedated her now 4 or 5 times to clean it out and it keeps coming...

I have 3 budgies, 2 male and 1 female. Yesterday I gave them ivermectin 1% oral drench in drinking water, because they all were tail bobbing for months upon months, one of them was breathing heavily like panting. I suspect they have some kind of liver problem. How did I come to think so? Here's...