The vision of California leaf-nosed bats is equal to the best night vision scopes, allowing them to see insects feeding on vegetation. Stop-action photography reveals how bats corral elusive prey by cupping their wings and tail membranes to scoop insects towards their mouths. When winter arrives in the northern hemisphere, bats migrate to warmer climates, or find a quiet cave or shelter with constant temperature and humidity and enter a state of hibernation. This can result in the animal's starving before the end of winter. Thus it is imperative to not disturb hibernating bats.
Bats have a varied diet.
Some eat insects, some eat fruit and some feed on flower nectar. Bats are so important to the pollination of many giant cacti of the desert Southwest, such as saguaro and organpipe, that some of these plants will not produce fruit unless pollinated by bats. Since much Southwestern wildlife is dependent on these desert fruits, bats are key to the survival and interworking of the desert ecosystem. Eighteen species of bats inhabit Colorado. All are insect-eaters which roost during the day in trees, caves, buildings and rock crevices and hunt in the dark.