Quiz 2

A little further along the trail you stop when you hear a song that sounds a little like a robin, but rougher and not quite as musical. You think you know what bird it is, but you've never actually seen one. You wait quietly until it flies onto a dead branch and sings again. Raising the binoculars slowly, you focus on the bird. No mistaking what it is now! That red color glows from within! What kind of bird is it?