Have Bird Questions? Ask a Bird Specialist.
Hi, I'm Dr. Gregg. I will try to help you tonight. Some times recently weaned birds will regurgitate. The fact it is "chunky" would make me want to check some of the crop fluid under the microscope to look for yeast, as well as abnormal bacteria. This is a quick and simple test I would recommend you have done just to be safe. If it is a crop infection, it is fairly straight foreward to treat
I hope that answers your question. If not I am happy to field any other questions you may have.