Weekly Least Sandpiper (LESA) night flight call (nfc) activity from three stations in the 2025 LRGV acoustic monitoring transect (Roma HS, Ramiro Barrera Middle School, and Alamo Inn B&B). LESA calls were automatically detected by Nighthawk 0.3.1 software operating from half-an-hour after sunset to 90 minutes before sunrise. W. Evans confirmed identity of the automatic detections and removed non-LESA calls. 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 in this graph is updated weekly through the end of Summer 2025.

2025 LESA Call Archive

(archive info and navigation instructions)