forms of native wildlife are stressed by development which leads to habitat destruction, changes in hydrology, introduction of exotic plant and animal species and introduction...: food, cover, water and nesting spaces. A few simple nest boxes, of the right specifications, will replace cavities in dead trees and make it possible for many species to breed. Food... increase the population sizes. All species are important -- insect pollinators for example, play a major role in food chains and are critical to seed formation by native plants as well...