I saw this bulbul this morning and noticed it had an orange vent where it should be yellow. We do get red vented bulbuls in this area and thought it might be a cross between the two. I've named in orange-vented bulbul.
Hi This looks like a hybrid White-cheeked X Red-vented But I like your idea of Orange-vented so I'll go for that well done on your new type of bird 