Number of bird species rises to 18,000 globally
Birds are traditionally thought of as a well-studied group, with more than 95 per cent of their global species diversity estimated to have been described.
Dec 13, 2016, 12:25 PM IST
Birds are traditionally thought of as a well-studied group, with more than 95 per cent of their global species diversity estimated to have been described.
Dec 13, 2016, 12:25 PM IST