Yes, and anecdotally I can tell you it's quite possible to kill a bird with non-stick cookware even it's not overheated. It's important to note that birds can

Yes, and anecdotally I can tell you it's quite possible to kill a bird with non-stick cookware even it's not overheated. It's important to note that birds can easily be injured or killed by all kinds of cooking smoke and fumes, regardless of origin, and all cooking smoke is known to be carcinogenic. But normal cooking fumes are nowhere near as dangerous as the shit that comes out of overheated PTFE.