We have a ton of pine trees on our property. Pine straw is abundant everywhere you look. After doing a search on the merits of various nest box liners I saw someone state thar pine straw was the best thing they'd found for it. Does anyone else have experience using pine straw in nest boxes? What about a mix of pine straw and pine shavings? Any drawbacks to using it as litter or even in the run during the rainy season to cut down on mud? Even if it's not ideal... it's FREE!