I remember reading about these years ago and I'm surprised that they're still in use. There's definitely a need to control wildlife populations, but doing it with devices that are akin to cyanide landmines seems like a bad idea.

The people in the article were unaware that one of these devices was placed a few hundred feet from their property. The signage on these devices also seem to be very small. I'm wondering if medical services are given any training or a heads up when these devices are placed. Cyanide poisoning is not the most common thing and I'm wondering how quickly medical services would recognize it.

These devices also seem to contain a large amount of sodium cyanide (880 mg). This is definitely enough cyanide to kill a child and even some adults. Though it seems like the release mechanism would make it difficult for a person to actually ingest all of the cyanide.