Hey guys, was just wondering if this would be ok for my duck house. Not sure if it will hurt there feet or not. Feel free to have a look around the website if you dont think these are any good and see if you find something more suitable. Many thanks guys, link below.
http://www.mainlandaggregates.co.uk/products/20mm-Peak-Pebbles-Supplie.asp?image=20mm Peak Pebbles.jpg

http://www.mainlandaggregates.co.uk/products/20mm-Peak-Pebbles-Supplie.asp?image=20mm Peak Pebbles.jpg