Warbler and sparrow nocturnal flight call composition | Eastern North America Transect
American Redstart Black-and-white Warbler Black-throated Blue Warbler Cape May Warbler Chestnut-sided Warbler Chipping Sparrow Common Yellowthroat Hooded Warbler Indigo Bunting type Lincoln's/Swamp Sparrow complex Mourning Warbler Northern Parula Northern Waterthrush Ovenbird Palm Warbler Savannah Sparrow White-crowned Sparrow White-throated Sparrow Wilson's Warbler "Zeep" complex" "Double up" complex
21-28 September 2013
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