Lower Rio Grande Valley Nocturnal Bird Migration
Weekly Least Sandpiper (LESA) night flight call (nfc) activity automatically detected by Nighthawk 0.3.0 software operating 8 hours per night (9p-5a CDT, GMT -5) at five stations in the LRGV acoustic monitoring transect (in progress: data updated daily). See table below for contributions from individual stations (Roma HS, Alamo B&B, Donna HS, Harlingen South HS, and Rio Hondo HS). Nfc activity is the sum of all incidences of a correctly ID'd LESA nfc detection that occurred at least two minutes from another LESA nfc detection.
Each station used an Old Bird 21c (v2020) microphone to receive sound from the night sky. The audio signal was fed to the microphone input of a USB audio device connected to a Dell Latitude (7200 series) laptop to record the sound. Nighthawk 0.3.0 is the most recent version of software that was first released in 2023 by Benjamin Van Doren. It involves an adaptation of the methodology used by the Cornell Lab of Ornithology in its Merlin App toward automatically detecting avian nocturnal flight calls.
Harold Mills programmed the data processing to transfer tentative Least Sandpiper detections from Nighthawk 0.3.0 to a Vesper archive in the cloud. Click the link below to access the archive and follow the instructions below the link to navigate in the archive.
(archive info and navigation instructions)
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