I know this has been debated on the past-but how strong is a chickens sense of smell? And does it even matter? Heres the situation. I recently bought a fixer up acreage. I was so excited! It even had large coop buildings that were built a little strange and had pea gravel bottoms but were great. They had been empty for a year or so. I asked realtor about the buildings but she didnt know anything. They would be perfect for my new chickens with adjustments. Later, I was talking to a new neighbor and asked about the coops. This gentleman informed me these buildings had been used to raise something else---hawks and falcolns. So here we are to my question- will my girls ever sense the prey birds were there? Is there anything else I should worry about? I plan on cleaning the coops- but how spotless can you really get them? They look pretty clean other than the gravel and occasional feather and chicken bone. Thank you!!