Recycle fly paper that is ! I buy the big sheets of fly paper on a roll from TSC and hang them here and there.....Well I started noticing all the flys that were stuck the previous day had disappeared and only a carpet of scrawny little leg's were left up to a line about 18 inches tall. I pulled off the old paper and rolled down a new sheet, scratching my head...... a while later I went out and all the flys were gone again but this time only up to about 12 inches..hummm. I went out later on to find my chickens eating all the flys off the fly sheets like a fly buffet. The different height that was left all depended on how tall the chicken was........ silly chickens. WARNING - Fly paper rolls can be used by chickens as capes, flapping in the wind as they run around the yard scaring the bejeaus out of all the other critters on your property..... it can also catch chicks that try to play stick to the wall games.......