We developed a targeted mist-netting technique designed to capture Willow Flycatchers (Empidonax traillii) at their breeding sites. The technique uses a variety of conspecific vocalizations to lure territorial flycatchers into mist nets. Songs and calls are broadcast from a portable CD player with speakers placed on both sides of the net. By playing vocalizations commonly heard during territorial interactions and switching the sound output from one speaker to the other, flycatchers are readily drawn into the nets.
This capture technique is highly effective, captures birds of both sexes, and worked at sites throughout the Willow Flycatcher's breeding range and on its Central American wintering grounds.