MIGRATORY BIRDS
Migratory birds are among the most ardent world travelers. They travel for miles across continents and oceans. In fact, the Arctic Tern is the longest passenger , in terms of distance traveled. One of the most intriguing aspects of all migrate birds of India is the fact that their route is precisely traced and they never lose track of their location. What is the process that allows them to acquire this remarkable capability? It is a subject of research, and a variety of opinions are held by scientists. There are some who believe that birds use the location of the stars and sun as well as the Earth's magnetic field, the climate, vegetation, etc. Absolutely, migratory birds can be an excellent indicator of climate and weather patterns. This is why "birds have been long used as indicators of ecological and environmental shifts on spatial and temporal scales. The results of a recently conducted survey of migratory birds is alarming....