I think my bird is vommiting, is he sick?

[Mangotango69]

I fed my bird a mango and let him out after and after flying a few rounds a few minutes later he throws up the mango and it’s a liquid now and then he throws up some seeds with liquid. I don’t think this is normal and he does this everytime he flys around a few rounds. Here are some pictures of his vomit : https://imgur.com/a/XvzoAhC

[boomer girl]

Sorry no one has seen this post and commented back. Is he shaking his head back and forth like he is saying "No" with a head shake like people do and then scattering the seeds out of his mouth?. Or like he is saying "Yes"? If so NO and scattering is not good at all and a sign of them throwing up. If it is yes then he is actually bringing food up through his crop and feeding you. To me by the scatter in the pictures it does look like he is throwing up. I do hope it has stopped and if not you have already taken him to the vets.