Hi! It snowed here and was pretty cold out so I gave my hens some straw to cover the muddy/icy ground and for them to have something to play with while there stuck in the coop all day. I found some old alfalfa or timathy hay(I'm not sure) ...that was for my Guinea pig (the hays probably about 2 years old) and I spread in the run with the straw for my hens to play with and dig in. They seem to be more interested in the straw seeds than the hay but I know they will get to the hay sooner or later. Has hay ever caused a problem for your hens? Thanks!