Insectivorous birds are friends of both the farmer and the forester and are well known to be important controls of farm and forest insects. Arboreal warblers for a valuable check on the numbers of small defoliatory larvae. Owls are good foresters, as they eat rats and mice.
It has been said that if all the birds were removed from any country, in two years' time it would be impossible to grow any farm crop, despite the many chemical insecticides in use.
Insectivorous birds are friends of both the farmer and the forester and are well known to be important controls of farm and forest insects. Arboreal warblers for a valuable check on the numbers of small defoliatory larvae. Owls are good foresters, as they eat rats and mice.