Ravindra Nisal - NISARGOPCHAR ASHRAM Uruli Kanchan Maharashtra

OVER LAST FEW YEARS IAM READING ABOUT VANISHING SPARROWS FROM THE CITIES DUE TO HIGH FREQUENCY MOBILE WAVES FROM TOWERS.iN OUR AREA SPARROWS WERE IN LARGE NO. nOW STILL WE SEE BUT LESS IN NO. iN 1996 LOT OF MAINAS USE TO COME ON TREES , BUT NOPW I DO NOT OBSERVE THEM. CAN ANY ONE TAKE UP DOCUMENTATION OF MAINAS ON SIMILAR LINES?