These guys are about the size of a cardinal. Very pretty bird with the red patch on its behind. They're also song birds so sing constantly.
A lot of local people hate them because they eat off of the local fruit trees. They really like mangoes, papayas, and avocados. My dad had a Thai bird chili plant and the BulBuls would pick them off even when they were still green. I'd constantly hear my did swearing up a storm in the backyard. He bought a BB gun to shoot them :( but it didn't matter. He was such a poor shot, he never even got close to hitting one.