On: Some birds use discarded cigarettes to fumigate their nests

[alexozer]

It dispenses in response to cigarettes, not crows (at least after training), so it wouldn't really matter I don't think.

[thomastjeffery → alexozer]

> (at least after training)

That is the question.

The article described "training" as progressing from free peanuts to peanuts for butts.

[shawabawa3 → thomastjeffery]

Maybe after the initial training period they just rely on crows learning from each other