Strange Bird

I stopped by the field opposite the LRT station at Taman Bahagia for cendol and rojak. While I was doing there, there were a lot of birds hopping around eating the left overs and I spotted the strangest bird. It looked like it had a little ball dangling from around its neck. I couldn't get a closer look as it just flew of when I approached it. I did manage to get a few pictures of it. The guy selling the cendol says he's seen the bird fyling around there before. I think it looks like some sort of tumour growing out of the bird. Well, I ain't eating the same thing the bird has been eating.