I built my aviary with my parents about 1 year ago! Because of cost we used normal chicken mesh instead of the strong lead coated rust-proof mesh that cost a huge amount! We live at the coast so everything rusts! Now one budgie has already escaped through a hole that we found so we decided to replace the smallest side of the aviary with this strong rust-proof mesh! Today we found a huge rip in the old mesh on top of the aviary! We do not want to loose more budgies but can't afford to cover it all with the good mesh! Would it be okay to use shade netting to cover the top? This type of shade netting: http://www.buildingmtl.com/listproduct.asp?action=11 My budgies don't actually sit or hang on any mesh they always sit on the sticks and branches but would they chew holes into the plastic shade netting and fly away? What do you think?