Take me to your leader

I noticed this the other day. It's in the garden of a neighboring house. It's a rusty kitchen strainer fastened to a stake with rope. I have no idea what it's for. Is it art? A pest trap? An alien listening post? Or does everyone except me have a rusty kitchen strainer fastened to a stake with rope in their garden?

I didn't notice any beeping or lights.

Yesterday I received a bizarre email from another neighbor requesting help, but without details. The message was strange, but plausible enough for me to reply with a generic "ok... what's up?" Turns out that our neighbor's email account had been hijacked and the perpetrator was fishing for money (a second message asked that I go out and buy four cash cards worth 250 euros each and transmit the codes to the scammer by email). I didn't reply again. Ken called the neighbor's husband to alert him, and he confirmed that someone else had told him they received the same message and that it was, indeed, a scam. I immediately changed my email password. I hope our neighbor can clear it up quickly; she's the mayor of our town.