Sunday 4 December 2011

PRESENT SITUATION OF THE ISSUE- 'MIGRATION OF BIRDS'

         In India, bird migration has been studied by the BNHS (Bombay Natural History Society) intermittently since 1980's. So far 4 lakhs birds have been ringed or banded; but the recovery rate was very low (only 1%) and no conclusion on the migration of birds in India can be inferred. Most data on the migration of birds in India comes from many developed countries such as Japan, European countries, the USA, etc.

            Recently, one black kite Milvus migrans lineatus ringed in Mongolia in its nest on July 18 2001, by Michael Stubbe from the University of Halle, Germany was captured live near Loktak Lake in Manipur on October 22, 2001. This is perhaps the first concrete evidence of migration of black kite from Mongolia to India and provides the information that black kite is a winter visitor in Manipur, NE India.

            Millions of birds annually travel between their nesting sites in the northern hemisphere and their wintering ground in the southern hemisphere. The most amazing aspect of this bird migration is the bird's return to its location faithfully with pinpoint accuracy. 

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