What makes mountain birds sing at dawn—and why are they sometimes quiet? Ecologists explain

Three species of the melodic African warbler bird refuse to get up early and sing their customary daybreak songs when the ...

I Learned to Hunt Ducks Like an Old-School North Dakotan

SLOUGHS and potholes were swarming with teal and spoonbills and pintails, with a good scattering of greenheads mixed in. Some ...