That article is a joke, and there's no real study (it's not even named). The final sentence is obviously not serious: "If you notice a pigeon displaying signs of nicotine addiction call 311 to report it and get it the help it needs."
I figured there was something off about it due to lack of a source, also couldn't find any studies like that when searching, that's why I put the "supposedly" in there.
Still kinda odd that nobody seems to have actually looked into a connection like that.