There are the decreasing number of insects and worms due to the use of chemical pesticides. This has resulted in a decrease in the number of sparrows as sparrows used to eat insects and worm. These birds are responsible for the pollination of flowers. The birds of this group are considered to the vulnerable and endangered group. So, it is necessary to take measures in order to protect and increase the number of these birds. There are gardens and parks developed which can be used for the birds for living. The Wildlife Act also proposed certain rules to protect these birds. The amount of radiations should be decreased which will protect the birds.