WHAT DOES WOOD SHAVINGS NEAR ME MEAN?

I have used the simple chick bedding (uk) which happens to be like thicker bits of wood chip it may be pricey mainly because it’s tiny bales.I tried Placing straw inside the Polish and Warren’s nesting box as I even though It could be nicer to put in…… They stopped laying , Definitely refused to lay. Removed it they all started off next day