Worked for me!
Just got my peeps the 1st of April and couldn't find pine shvngs in my VERY small town so I used some of the dried alfalfa hay that the horses had tossed around all winter. I left stems and all, just broke it up some so it would settle better. They seemed to love it!
First day, I covered it with paper towels so they could find food and stuff, but after that, just the hay. And I was amazed how those little gals got it all stomped and level in no time.
Used it for at least 5 days before I could get south and find pine.
Hope this helps!