Since bagworm cases are composed of silk and the materials from their habitat, they are naturally camouflaged from predators. Predators include birds and other insects. Birds often eat the egg-laden bodies of female bagworms after they have died. Since the eggs are very hard-shelled, they can pass through the bird's digestive system unharmed, promoting the spread of the species over wide areas.
since bagworm cases are composed of silk and the materials from their habitat they are naturally camouflaged from predators predators include birds and other insects birds often eat the egg-laden bodies of female bagworms after they have died since the eggs are very hard-shelled they can pass through the bird's digestive system unharmed promoting the spread of the species over wide areas