I generally agree with what the article says, but.. > Taipei is an extremely clean city, and completely devoid of pigeons due to the absence of food leftovers

I generally agree with what the article says, but.. > Taipei is an extremely clean city, and completely devoid of pigeons due to the absence of food leftovers on the streets Yeah, no, that's not the reason. It is true that Taipei has no food leftovers on the streets, but the pigeons aren't "gone", they're trapped in rooftop cages, mostly for pigeon racing (but occasionally to be cooked). Taiwan has more pigeon racing than any other country on earth, according to Wikipedia.