One acre with a house on it is not enough land for over 100 chickens and turkeys. Assuming that you want to keep some vegetation, not have soil and runoff problems, and allow some actual free ranging and foraging for your birds, a dozen or so is probably all you should have. My friends outside of Woodstock (a smaller and more rural community west of Roswell) have a dozen Rhode Island Reds, ten guinea fowl, and a goose. They also have almost 10 acres and live next door to an 80-acre working farm.
Your numbers reflect your opinion only. I have 2/3 of an acre with 12 laying hens the neighbors love!
I free range them and give the eggs away for free.