Nws tuaj yeem ntsia tau ntawm cov qauv txhawb nqa xws li hoppers thiab tso tsheb hlau luam, thiab kuj tseem siv tau rau kev ntsuas ntsuas uas muaj qhov qis dua. Nws kuj tseem tuaj yeem muab tau rau ntawm kev txhawb nqa lossis cov khoom quab yuam-cov qauv ntawm cov cuab yeej xws li cranes, xuas nrig ntaus, thiab dov mills kom ntsuas qhov ntsuas lawv txoj hlab.