Hello! just saw this in popular topics, skimmed, between reading first and last pages, and wanted to share what's working wonders for me.. muscovy ducks! id had an abused rescue years ago that sparked my intrest, met a guy who had a pair left that said might part with might not, so gave him five extra dollars and got abandoned clutch of sisters dozen eggs ready to hatch with them (the kittens hit the bator in the night causing ultimate demise of whole clutch). first week about before female started laying they did nothing and ate nothing but devour every bug no matter how tiny or large that crawled burrowed and flew, that they could get at. Even since i see no bugs in pen but one or two lucky brave stray tiny ants temp, and now that duck on clutch of fertile fifteen count of jumbo eggs, seen some almost half dozen mosquitoes coming out of irises in their pond when got close to check it. I leave that large tub so looks and as more natural and they and young would have somewere to hunt play and hide ect. i used to find all sorts of bugs constantly in that old pen, but even on hot wet ripe days i never see or hear even any bugs for more than seconds even cup fulls i bring in and dump for them, even though they have big stinky left in manure fertilized water plant pond, and couple dozen at least damp rotting logs and stumps to have hunting/hiding areas and perches perfect for them. i do provide pot to bucket of fresh water once two twice daily, and am providing layer pellets as well as scratch ect that get but hardly eating slow to hardly each day. my rhode island red ect coop however just full of flies.