Weekly Canada Warbler (CAWA) night flight call activity from all five stations in the WNY acoustic monitoring transect. CAWA calls were automatically detected by Nighthawk 0.3.1 software operating from half an hour after sunset to 60 minutes before sunrise in 2025 (30 minutes before sunrise in 2026). W. Evans confirmed identity of the automatic detections and removed non-CAWA detections. Nfc activity is the sum of all incidences of a correctly ID'd CAWA call that occurred at least one minute from another CAWA call. Data updated weekly.