We have had our chicks since 3/31/11 and I have decided that the reason chicken poop smell particularly awful is because of their food...I had a bag of chick crumple get wet in trailer....salvaged most of the bag....however, when I cleaned what had spilled out of my trailer....I thought I was going to gag it smelled so badly! AND I don't have a weak stomach and I LOVE "farm" smell!
In addition, we also have rabbits, 4 cages....2 of which house rabbits that are litter box trained THANK GOD! Then there are two cages that house rabbits with long hair....wire bottom cages and due to their fur, (my daughter used to show them) they don't use litter boxes.....at the moment...(while we finish our coop and run) ALL of them the chickens and the bunnies are on our porch...if the cages don't get cleaned out when they should, I think the bunny cages (the non litter box using ones) smell FAR WORSE than 2 brooder boxes, one with ten 10 1/2 week old chicks and another brooder box with 12 chicks ranging in age from 2 1/2 weeks to 5 weeks old. Moral of the story.....we will NEVER have another long haired bunny again!