Posted Feb 17, 2015
My family was given six guineas to deal with an insect problem. The birds were very good at keeping the insect population under control, but weren't aggressive towards humans at all.
However, the birds were very unintelligent. We built a pen to keep them safe from predators and initially tried to put them there at night, but they hated being in it. They did everything in their power to get out of the cage, and eventually we gave up trying to keep them inside. In addition, they weren't afraid of vehicles, and wouldn't move when a truck approached. As a result, we lost every bird in about six months.
I found the guineas frustrating, all told. It's hard to appreciate fewer insects when you have to chase birds for an hour every evening just to make them safe for the night.