I changed my pine shavings every 3rd day.
For the first day they smelled like pine, the second day they smelled like animals but not bad, by the third day you knew it was time for a change so I always changed it first thing in the morning.
I doubt 4 hens would be too bad, unless the neighbors already don't like you. The laws here are friendly, but ya never know how people might react. When I told my neighbor I had chicks her response was "ooooh, I love chickens!!" so you could get lucky and have neighbors like that
For the first day they smelled like pine, the second day they smelled like animals but not bad, by the third day you knew it was time for a change so I always changed it first thing in the morning.
I doubt 4 hens would be too bad, unless the neighbors already don't like you. The laws here are friendly, but ya never know how people might react. When I told my neighbor I had chicks her response was "ooooh, I love chickens!!" so you could get lucky and have neighbors like that