Acoustic monitoring station at Chatham, NY
American Redstart Black-and-white Warbler Black-throated Blue Warbler Canada Warbler Cape May Warbler Common Yellowthroat Chestnut-sided Warbler Double-up complex
Northern Parula Northern Waterthrush Ovenbird Savannah Sparrow Wilson's Warbler Zeep complex
Proportion of Double-up complex night flight calls among all warbler and sparrow night flight calls (nfcs).
Daily datapoints are mid-week dates of weekly call totals, for example the first data point in each year (Aug 13) indicates the proportion of DBUP nfcs in the seven-day period from 9pm Aug 10 through 5am Aug 17.
Double-up complex Spectrographic Examples
7-night warbler and sparrow call totals: 2012 2013 2014
* Double-up complex includes Tennessee Warbler, Black-throated Green Warbler, Nashville Warbler and Orange-crowned Warbler.
