Carol, living in Union County NC for over 50 years, I can assure you that you will be hard to notice any odor from a chicken house. Only if you were to enter inside one would you possibly smell an "ammonia' like smell. The poultry producers in the area have very high cleanliness standards, and the houses are thoroughly cleaned after each load of chickens are raised out. They have to be clean as these birds are hatchery raised and do not have a strong immune system and they can very easily get diseased. Tthat can become very costly for the industry as well as the poultry house owner. Come on down to Union County and let me show you just how clean and fresh the country air is compared to some cities up north. I think you'll love the area just like thousands of people who have moved here in recent years.

Dunes, having never worked at a pig farm, I'm going to defer to you...

you may know your pig poop better than I know my chicken-er... ammonia by-product.

When life throws you lemons, make lemonade:
http://www.youtube.com/watch?v=HKSnyS-vmkg

Not true Alan, I worked on a Chicken farm in Escalon Ca. several summers as a youth in the early 1800's and never noticed the smell, but the pig farm next to it reeked.......

I've worked on a chicken farm. And the only thing that smells worse than a chicken farm, is a chicken farm in the summer.