Warbler and sparrow nocturnal flight call composition | Eastern North America Transect
American Redstart Black-and-white Warbler Black-throated Blue Warbler Canada Warbler Cape May Warbler Chestnut-sided Warbler Chipping Sparrow Common Yellowthroat Hooded Warbler Mourning Warbler Northern Waterthrush Ovenbird Savannah Sparrow Wilson's Warbler "Zeep" complex" "Double up" complex
10-17 August 2013
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