LRGV Nocturnal Bird Migration Study

Weekly Least Sandpiper (LESA) night flight call (nfc) activity automatically detected by Nighthawk software operating 8 hours per night (9p-5a CDT, GMT -5) in 2024 and from half an hour after sunset to 90 minutes before sunrise in 2025. 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. Data updated weekly.

Summer 2025

2025 LESA Call Archive

(archive info and navigation instructions)

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