I am a little frustrated, I have only had chickens since october, so I am still new at this. I need to know if I am doing something wrong for the "deep liter method" I have had to do a complete change of the liter already and it needs it again! It is already starting to get an ammonia smell! My coup is 8 X 16 with 21 chickens who have had to be in almost all winter. The last change I did, I put 4 big bags of shavings down. That was about 6 weeks ago. I try to keep it stired too, about every 3 days. What am I doing wrong?????