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Niagara & Orleans County NY ("Lighthouse") Nocturnal Flight Call Study Archive (updated February 12, 2019)

This archive contains avian flight calls recorded during a study on nocturnal bird migration concentration dynamics in the coastal region of southern Lake Ontario from mid-April through mid-June 2016-2018. During the study more than 5000 station-hours of audio were received from the night sky by an array operating nightly of up to seven monitoring stations located in the Counties of Niagara & Orleans NY (Towns of Somerset & Yates). Seven monitoring stations were operated in spring 2016, four in spring 2017, and two in spring 2018. Avian nocturnal flight calls were extracted from the audio recordings using the automatic flight call detection software  "Tseep" and "Thrush".

 

71,739 high frequency bird calls (> 5 kHz) were extracted with the Tseep software, mostly warblers & sparrows. 20,000+ calls were extracted with the Thrush software, the majority of which were Catharus thrushes. This link leads to data & audio examples from the study of species listed as Threatened, Special Concern, or Species of Greatest Conservation Need (SGCN) in New York State, or which are rare in the region of the study. This link leads to a "Vesper" spectrograph & audio archive of ~28,000 warbler and sparrow calls detected at the seven 2016 monitoring stations, searchable by date and species.