Actually the cell phone signals do not affect the birds since we had studied the cell phone signal will have a huge wavelength so that it will be having very very less energy that is they are not ionisable radiation,the wavelength of cell phone signals ia about one foot so that it will be having a frequency in the region of 1000Mhz but the visible radiation that is the colours what we see is having greater frequencies than this so that cell phone signals are not harmfull for both human and birds...Actuall killers of birds is the people yeah ! but people has changed their food habits from the previous years previously we had been eating minor millets such as thenai,saamai,varagu,kuthirai vali for years when people demands only for rice the farmers are forced to grow rice and other demanded crops and not the minor millets since this minor millets were the food of birds they fly in a group into the field and feed few grains and eat the insects and worms also cannot feed on rice like grains since they are big sized for their beaks...Nowadays the demand for rice made no availablity of foood for the birds so that we are the actual killers of birds...we kill nature for our comfort...
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