This data set contains information from recording devices that were set to record regularly during summer breeding seasons. A single observer listened to 2692 recordings, noting which species were heard during each 10-min recording. We used this information to examine how avian detectability varied by day of season, time of day, and ambient temperature. All study locations were in northwestern Alaska, on the Seward Peninsula, and recordings were taken between May 25 and July 26 in 2013 and 2014.

Acoustic recorders can detect the presence of birds and these detections may be used for the purpose of population abundance or estimation. This monitoring project compared the abundance of tundra-breeding birds detected through both acoustic monitoring and observational surveys. The data package is comprised of four tables: (1) habitat type, including vegetation height at sites where acoustic recorders and human observer point counts occurred, 2) bird detections obtained using the observer methods, 3) bird detections obtained using the acoustic monitoring method, and 4) taxonomy table of bird species detected during both observer and acoustic recorder survey methods.

Acoustic recorders can detect the presence of birds and these detections may be used for the purpose of population abundance or estimation. This monitoring project compared the abundance of tundra-breeding birds detected through both acoustic monitoring and observational surveys. The data package is comprised of four tables: (1) habitat type, including vegetation height at sites where acoustic recorders and human observer point counts occurred, 2) bird detections obtained using the observer methods, 3) bird detections obtained using the acoustic monitoring method, and 4) taxonomy table of bird species detected during both observer and acoustic recorder survey methods.

Data were collected during implementation of the Southeast Coast Network’s Landbird Community Monitoring Protocol. Automated recording devices (ARDs) captured bird vocalizations at spatially-balanced random sampling locations during the April-May breeding season. A subset of of recorded audio were reviewed and all discernible bird vocalizations were reviewed and classified to species. ----Supplemental Information: Avian taxonomy follows 61st supplement (Chesser et al., 2020) to the Check-list of North American Birds, 7th edition (American Ornithological Union [AOU], 1998). Citations: AOU. 1998. Check-list of North American Birds, 7th ed. American Ornithologists’ Union, Washington, DC, USA.; Byrne, M. W., C. J. Wright, E. Thompson, and C. D. Jones. 2014. Protocol for monitoring landbird communities in Southeast Coast Network Parks. Natural Resource Report NPS/SECN/NRR—2014/853. National Park Service, Fort Collins, Colorado.; Chesser, RT, SW Billerman, KJ Burns, C Cicero, JL Dunn, AW Kratter, IJ Lovette, NA Mason, PC Rasmussen, JV Remsen Jr, DF Stotz, and K Winker. 2020. Sixty-first Supplement to the American Ornithological Society’s Check-list of North American Birds. The Auk, Volume 137, Issue 3, 1 July 2020. https://doi.org/10.1093/auk/ukaa030;

Data were collected during implementation of the Southeast Coast Network’s Landbird Community Monitoring Protocol. Automated recording devices (ARDs) captured bird vocalizations at spatially-balanced random sampling locations during the April-May breeding season. A subset of of recorded audio were reviewed and all discernible bird vocalizations were reviewed and classified to species. ----Supplemental Information: Avian taxonomy follows 61st supplement (Chesser et al., 2020) to the Check-list of North American Birds, 7th edition (American Ornithological Union [AOU], 1998). Citations: AOU. 1998. Check-list of North American Birds, 7th ed. American Ornithologists’ Union, Washington, DC, USA.; Byrne, M. W., C. J. Wright, E. Thompson, and C. D. Jones. 2014. Protocol for monitoring landbird communities in Southeast Coast Network Parks. Natural Resource Report NPS/SECN/NRR—2014/853. National Park Service, Fort Collins, Colorado.; Chesser, RT, SW Billerman, KJ Burns, C Cicero, JL Dunn, AW Kratter, IJ Lovette, NA Mason, PC Rasmussen, JV Remsen Jr, DF Stotz, and K Winker. 2020. Sixty-first Supplement to the American Ornithological Society’s Check-list of North American Birds. The Auk, Volume 137, Issue 3, 1 July 2020. https://doi.org/10.1093/auk/ukaa030;

This data package contains two tables with habitat measurements from each sampling point used in avian point-transect surveys on the Seward Peninsula in 2012 and the locations of those sites. Measurements include percent cover and canopy height of alder (Alnus spp.), dwarf birch (Betula spp.), ericaceous shrubs (e.g., Empetrum, Vaccinium spp.), herbaceous, lichen (e.g., Cladonia spp.), and willow (Salix spp.).

This data package contains three tables: 1) avian point-transect survey data collected on the Seward Peninsula in 2012, 2) locations of all survey sites, and 3) an avian taxonomy table for reference.

This data set includes capture information and ethoxyresorufinOdeethylase (EROD) activity results for harlequin ducks sampled during March 2011, 2013, and 2014 in western Prince William Sound, Alaska.