Warbler and sparrow nocturnal flight call composition | Eastern North America Transect | September 9-16, 2012
American Redstart Black-and-white Warbler Black-throated Blue Warbler Canada Warbler Cape May Warbler Common Yellowthroat Chestnut-sided Warbler Hooded Warbler Lincoln's Swamp complex Mourning Warbler Northern Parula Ovenbird Savannah Sparrow Wilson's Warbler White-throated Sparrow "Zeep" complex" "Double up" complex
"Double up" complex species this week primarily include Black-throated Green Warbler, Nashville Warbler, Yellow-rumped Warbler, Tennessee Warbler and perhaps a small portion of Orange-crowned Warbler.