Haha! You might be right Henriettasmum... :) I think what I found most about them is how much better they seem to do in a bigger free range setting. I have way too many predators for true free ranging. Not just the aerial type, we also regulary get coyotes, feral dogs (and coydogs)...
I tried Guinea's for awhile and was not impressed. Mainly because they may have been too big for hawks, but would sleep on top of the coop roof at night and get picked off by Great Horned Owls. Most people don't know this, but owls have a much heavier wing loading than hawks, and can carry off...