Hi everyone, I am having a personal debate. I have a duel level bottom to my aviary. Planter space at top and then a ramp down to the bottom where there is straw at the moment. On the top level I have put pine shavings. I have little baby buttons at the moment who were hatched on the top level. Every hour or so I have to go out and check because the little guys are falling off the top and they can't work out how to get back up, because they are lost in the straw. Now I want the straw gone, but all I have to replace it with is either dry clean river sand or pine shavings. The aviary is on a cement slab, but because they share their aviary with canaries and their perches are right over that area. I need to put something down, otherwise I will be on my hands and knees scrubbing the poo off of it. I have done it before and boy canary poo is sticky stuff. Hard to budge. What should I do? Which one should I put down? Either which way I will have to shovle it like I do with the hay anyways.