Since the manure is often stored for long periods of time, farmers only empty the manure storage a few times a year. When a farmer is cleaning the storage area and spreading the manure, odors can be very strong. Many factors determine the range and strength of odors. These include humidity, temperature, distance from the farm, topography, and wind direction. Many of these a farmer has no control over.
Chickens can sometimes be noisy animals.
If you live near a chicken farm, you might hear chickens making noises at all hours the day and night. Layer and broiler houses have few windows, especially where the birds are kept. This is due to the artificial lighting schedules that control laying and feed uptake. Large trucks may be seen coming in and out of the poultry farm, either picking up eggs, picking up broiler chickens for slaughter or delivering chicken feed. These trucks may be big, loud and occasionally hold up traffic.