It’s possible they tried and can’t find the damn thing. That chirp is just infrequent enough to make locating the source difficult.

Nowadays in the US, where it looks like this was taken (why do I feel like I have to add that anytime I mention the US lest 50 people point out that not everything revolves around the US), that could get you shot blindly through a door as your neighbour satisfies their blood lust to finally kill someone with one of the many firearms they keep for innocent passerby they think they can get away with saying made them fear for their lives.