Using audio recording dataloggers, we collected nocturnal bird vocalizations at different sites within the Davy Crockett National Forest and the Stephen F. Austin Experimental Forest. We detected vocalizations of a variety of nocturnal and diurnal species. This technology is useful for its application to avifauna.
Johnson, J. B., D. Saenz, D. B. Burt and R. N. Conner. 2002. An automated technique for monitoring nocturnal avian vocalizations. Bulletin of the Texas Ornithological Society 35:24-29.