Mother is sometimes full of a lot of hog-wash! According to the article they had no ticks and fewer flies with a flock of chickens.
This is our second summer with our flock of (right now) 90 some chickens. I see NO difference in the number of ticks and swarms more flies. Anyone who thinks that chicken poo does not attract flies they had better think again. My wife is a farm girl and I was familiar enough with farming to know that when we started our flock we would have flies. It's just part of farming, chickens are included as part of farming folks.