Their habitat's gone. There is nothing to breed in, so they're all gone. Habitat loss can take many forms. It can be as obvious as a parking lot or mall where a forest once stood. Or it can be subtle - houses and roads that cut up forests and fields into patches so small that many animals can't use them.
Many animals die quickly, buried alive when the bulldozer moves through.
I think there is this sense that when you cut the forest for my house, Bambi and all of Bambi's friends are going to migrate to some other, happier place and take up residence there. Animals, such as rabbits, that can move to other habitats will find them already occupied. The newcomers will be disoriented and exposed to predators. From an airplane, the Richmond area appears to be heavily forested, a lush haven for wildlife. Not so, said Thomas L. Smith, director of the Virginia Natural Heritage Program, which works to protect rare species.