Amazon parrot sneezing — when should I worry?

My green cheek conure has been sneezing a few times a day for the past week. No discharge, still eating and playing normally. Could it be the dry winter air from heating? Or should I book a vet visit?

Interesting take! I see your point but I've had a completely different experience. My umbrella cockatoo actually...

Oh my bird did this for about two to three weeks and I tried everything. Honestly, time was the biggest factor. They just grew out of it.