 The noisy miner also produces non @-@ vocal sounds by clicking or snapping its bill , usually during antagonistic encounters with other bird species , or when mobbing a predator . 
 The noisy miner also <a href='uninflect' title='1'><mark>produces</mark></a> non @-@ vocal sounds by clicking or snapping its bill , usually during antagonistic encounters with other bird species , or when mobbing a predator . 
Da noisy miner also produce non @-@ vocal sounds by clicking or snapping its bill , usually during antagonistic encounters with other bird species , or when mobbing a predator .