Spring 2024 nightly Dickcissel call totals from all seven stations in the LRGV acoustic monitoring transect.
Dickcissel night flight calls were automatically detected by Nighthawk 0.3.0 and Dick-r software operating 8 hours per night (9p-5a CDT, GMT -5). 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. Dick-r is software programed by Steve Mitchell for Old Bird Inc. in 1999 for use in the original LRGV transect. Nighthawk 0.3.0 was the current version of software first released in 2023 by Benjamin Van Doren. It involves an adaptation of the methodology used by the Cornell Lab of Ornithology's Merlin App toward automatically detecting avian nocturnal flight calls of 80+ species including the Dickcissel. 

Harold Mills designed the dataflow processing infrastructure to feed tentative Dickcissel detections from Nighthawk 0.3.0 and Dick-r to a searchable archive in the cloud. This began to come online in early May 2024 and allowed users to browse spectrograms and listen to detected calls from the previous evening and earlier in the season. It also facilitated evaluation of the accuracy of automatic species classification software. Click the link below to access the archive and follow the instructions below the link to navigate in the archive.