This is because bird species have very complex muscles, especially the ones dedicated to song. "For this initial work, we chose the great kiskadee, a member of the flycatcher family and a species ...

One of the first imperiled animals the Center championed, the southwestern willow flycatcher has suffered more than a century of steady decline. Livestock grazing, dams, water withdrawal, and sprawl ...

Every spring since 1969, Dartmouth researchers produced hand-drawn maps of songbird territories in New Hampshire's Hubbard Brook Experimental Forest by listening for their distinctive calls. Fifty ...

One of the first imperiled animals the Center championed, the southwestern willow flycatcher has suffered more than a century of steady decline. Livestock grazing, dams, water withdrawal, and sprawl ...