Bird sounds courtesy of the Cornell Lab of Ornithology A common migrant, the black-throated green warbler has a deep black throat, yellow head, olive-green back and two white wing bars.

The Auk, Vol. 27, No. 3 (Jul., 1910), pp. 289-294 (8 pages) This item is openly available as part of an Open JSTOR Collection. For terms of use, please refer to our ...

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 ...