We had a sun conure since it was a baby, we hand fed it, had it for a year and then sold it to a loving bird family. It was very hard and then they call me two weeks later and the bird died. They just took it to get its wings clipped, they dropped it at the vet, could the bird have died from internal bleeding? Could it have died from a "broken heart" I'm just very upset as to why a healthy bird would just have jerking motions, keel over, and die. Please help if you can?