We have been using wheat straw in our henhouse and also scattering a bit around the run to give the girls something to do when they are shut in. (The run is covered.) We clean it out and add it to the compost bin about once a week. Two problems: our compost is now overflowing with straw. Maybe we are using too much? We have cut back. Also, we've had a lot of rain lately and it now smells like something died in our hen house. Should we switch to pine shavings? Can you compost it and how often do you need to replace it? Thanks!