Fondell, Thomas F. 20250825 tabular digital data Anchorage, Alaska U.S. Geological Survey, Alaska Science Center Suggested Citation: Fondell, T.F., 2025, Waterfowl census data during fall migration at Nanvak Bay, Togiak National Wildlife Refuge, Alaska, 1992: U.S. Geological Survey data release, https://doi.org/10.5066/P1WH3SUH https://doi.org/10.5066/P1WH3SUH Waterfowl were observed staging at Nanvak Bay, Togiak National Wildlife Refuge in southwest Alaska between 31 August and 27 September 1992. This data release contains five tables including 1) aerial surveys, 2) band resights for Black Brant (Branta bernicla nigricans), 3) Black Brant age ratios, 4) bird migration observations, and 5) taxonomy table for observed birds. The objectives of the census were to: 1) read tarsal band and neck collar codes from marked geese, and 2) assist refuge staff in conducting daily waterfowl counts. The data presented in this data release were transcribed 'as-is' from the field datasheets. For a summary of activities, please refer to the report provided as supplementary material. 19920831 19920927 observed Complete None planned Nanvak Bay, Togiak National Wildlife Refuge, Alaska -161.8616 -161.6460 58.6598 58.5324 USGS Metadata Identifier USGS:68951682d4be02742084c989 ISO 19115 Topic Category Biota Environment NASA GCMD Earth Science Keyword Thesaurus Animals/vertebrates Birds Ducks/geese/swans Tundra Ecosystems Aquatic Ecosystems USGS CSA Biocomplexity Thesaurus Abundance (organisms) Census Surveys Species composition Age composition USGS Thesaurus Field inventory and monitoring Ecology USGS Geographic Names Information System (GNIS) Alaska Nanvak Bay USGS Protected Areas Database of the United States (PAD-US) Togiak National Wildlife Refuge None Anseriformes Charadriiformes Gaviiformes Gruiformes Podicipediformes ITIS Integrated Taxonomic Information System Unknown online database online ITIS-North America Taxonomic details retrieved August 7, 2025, from the Integrated Taxonomic Information System online database https://www.itis.gov https://doi.org/10.5066/F7KH0KBK Species were identified by skilled observers in the field based on general appearance of plumage, behavior, and vocalizations. Taxonomy is complete for all samples, except for some duck, geese, eider, shorebird, and cormorant that could not be identified to species due to poor lighting. No vouchers were collected. Kingdom Animalia Subkingdom Bilateria Infrakingdom Deuterostomia Phylum Chordata Subphylum Vertebrata Infraphylum Gnathostomata Superclass Tetrapoda Class Aves Order Anseriformes TSN: 174982 Order Charadriiformes TSN: 176445 Order Gaviiformes TSN: 174466 Order Gruiformes TSN: 176147 Order Podicipediformes TSN: 174476 No access constraints. No use constraints. These data are marked with a Creative Commons Zero v1.0 (CC0-1.0) Universal public domain dedication. Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations. U.S. Geological Survey, Alaska Science Center Mailing and Physical

4210 University Drive

Anchorage Alaska 99508 USA 907-786-7000 gs-ak_asc_datamanagers@usgs.gov Fondell, T. Harb, L. 1992 report Anchorage, Alaska U.S. Fish and Wildlife Service Fondell, T., Harb, L. 1992. Fall waterfowl observations at Nanvak Bay, Togiak National Wildlife Refuge. U.S. Fish and Wildlife Service, Anchorage, Alaska. Short, B.E. 1992 report Dillingham, Alaska U.S. Fish and Wildlife Service Short, B.E. 1992. Migration, staging, and nesting of migratory waterfowl, southwest Alaska - A status report of the 1992 waterfowl monitoring efforts on the Togiak National Wildlife Refuge. U.S. Fish and Wildlife Service, Togiak National Wildlife Refuge, Dillingham, Alaska. Collection dates/times, sampling locations, and bird species counts were cross-checked and verified with field worksheets. Attribute values fall within expected ranges and data were proofed for the presence of duplication and omission. Blank cells indicate that no data are available for a particular sample (see Attribute Definitions for details). The dataset is complete, no data were omitted. Positions are not provided in this dataset. METHODS - FIELD: Waterfowl counts were conducted simultaneously from the upper and lower bay observation towers at Nanvak Bay using Questar telescope. Unknown Site names are used to reference specific geographic locations. Coordinates do not exist for this dataset. Point rawData_aerialSurvey_birdObservations_togiakNWR_fondell_1992.csv Table with flight times and count data for each bird species observed during aerial surveys on August 21, 1992. Presented in a Comma Separated Value (CSV) formatted table. Author defined Date Date of the aerial survey observation. Author defined 1992-08-21 1992-08-21 Date (YYYY-MM-DD) Location Common name for the bay where the aerial survey was conducted. Author defined Osviak Slough Osviak Slough, Alaska (approximately 58.79N 161.29W) Author defined Chagvan Bay Chagvan Bay, Alaska (approximately 58.78N 161.71W) Author defined Upper Nanvak Upper Nanvak Bay, Alaska (approximately 58.63N 161.75W) Author defined Lower Nanvak Lower Nanvak Bay, Alaska (approximately 58.59N 161.74W) Author defined Flight_start The start time for the aerial survey flight. Author defined 15:25 16:16 Local time in 24 hrs (HH:mm) Flight_end The end time for the aerial survey flight. Author defined 15:30 16:20 Local time in 24 hrs (HH:mm) Species The common name of the species observed during the aerial survey. If the species could not be identified to species, the birds were identified to species group (e.g., cormorants, geese, ducks, eiders, and small shorebirds). Full taxonomy for identified species are available with this data release "taxonomy_migrationObservations_togiakNWR_fondell_1992.csv". Author defined Common name of the species observed and identified during aerial surveys. Count The total number of individuals of each species counted during the aerial surveys. Author defined 2 1900 Integer Comments Comments recorded by the observer. Blank cells indicate that no comments were recorded. Author defined Comments recorded by the observer. rawData_bandResighting_togiakNWR_fondell_1992.csv Table with information on the color band resights of Black Brant geese observed at Nanvak Bay, Alaska. Presented in a Comma Separated Value (CSV) formatted table. Author defined Study_area The general region where the observations occurred. Author defined Nanvak Bay Nanvak Bay, Alaska (approximately 58.60N 161.75W) Author defined Species The species of waterfowl for which there were color band resights. Full taxonomic information is available with this data release "taxonomy_migrationObservations_togiakNWR_fondell_1992.csv". Author defined Black Brant Black Brant (Branta bernicla nigricans) Author defined Observer Initials of the observer. There may be more than one observer per record. Author defined Initials of the observer. Date Date of the resight observation. Author defined 1992-09-02 1992-09-12 Date (YYYY-MM-DD) Time Time of the resight observation. Blank cells indicate that the observation time was not recorded. Author defined 09:00 21:00 Local time 24-hrs (HH:mm) Location Common name of the location within Nanvak Bay where the banded bird was observed. Author defined Common name of the location within Nanvak Bay where the banded bird was observed. Flock_size Number of individual birds in the flock that contains the banded bird. Author defined 2 350 Integer Band_code The three-digit code engraved on the observed leg band. Blank cells indicate that the code could not be read by the observer. Author defined The three-digit code engraved on the observed leg band. Band_color The color of the observed leg band. Blank cells indicate that only a metal band was observed and no color band. Author defined The color of the observed leg band. Age The estimated age of the observed banded bird. Author defined A Adult Author defined AHY Adult, After Hatch Year Author defined J Juvenile, Hatch Year Author defined UNK Unknown age Author defined Dist The distance from the observer to the flock containing the banded bird, recorded in meters. Author defined 35 200 Meters Unmarked The number and age class of the birds in the flock that were unbanded. Blank cells indicate that the number and age of unbanded birds was not recorded. Author defined 1 25 Integer HY Juvenile, Hatch Year Author defined AHY Adult, After Hatch Year Author defined Assoc_adult Indicated the number of adults the banded bird was associated with. The letter next to the number indicates if the associated adult was banded or not. Blank cells indicate that the banded bird was not associated with any adults. Author defined 1 2 Integer N The associated adult was not banded. Author defined Y The associated adult was banded. Author defined Assoc_juv Indicated the number of juveniles the banded bird was associated with. The letter next to the number indicates if the associated juvenile was banded or not. Blank cells indicate that the banded bird was not associated with any juveniles. Author defined 1 5 Integer N The associated juvenile was not banded. Author defined Y The associated juvenile was banded. Author defined U It is unknown if the associated juvenile was banded. Author defined Comments Comments recorded by the observer. Blank cells indicate that no comments were recorded. Author defined Comments recorded by the observer. rawData_brantAgeRatios_togiakNWR_fondell_1992.csv Table with information on the proportion of juvenile brant observed in a flock. Presented in a Comma Separated Value (CSV) formatted table. Author defined Study_area The general region where the observations occurred. Author defined Nanvak Bay Nanvak Bay, Alaska (approximately 58.60N 161.75W) Author defined Species The species of waterfowl for which there were color band resights. Full taxonomic information is available with this data release "taxonomy_migrationObservations_togiakNWR_fondell_1992.csv". Author defined Black Brant Black Brant (Branta bernicla nigricans) Author defined Observer Initials of the observer. Author defined Initials of the observer. Date Date of the observation. Author defined 1992-09-12 1992-09-14 Date (YYYY-MM-DD) Time Time of the observation. Author defined 13:10 15:08 Time 24-hrs (HH:mm) Location Common name of the location within Nanvak Bay where the observation was made. Author defined Common name of the location within Nanvak Bay where the observation was made. Tide_stage The stage of the tide at the time of the observation. Author defined Low Low tide Author defined Wind_dir The wind direction at the time of the observation. Author defined NW Northwest Author defined W West Author defined Wind_speed The wind speed at the time of the observation, recorded in miles per hour. Author defined 10 10 Miles per hour Flock_size Number of individual birds in the observed flock. Author defined 176 212 Integer AHY_num The total number of adults observed in the flock. Author defined 130 152 Integer HY_num The total number of juveniles observed in the flock. Author defined 46 60 Integer Prop_HY The proportion of juveniles observed in the flock. Author defined 26.1 28.3 Proportion Comments Comments recorded by the observer. Blank cells indicate that no comments were recorded. Author defined Comments recorded by the observer. rawData_migrationObservations_togiakNWR_fondell_1992.csv Table with information on the number and type of bird species observed in Nunvak Bay. Presented in a Comma Separated Value (CSV) formatted table. Author defined Study_area The general region where the observations occured. Author defined Nanvak Bay Nanvak Bay, Alaska (approximately 58.60N 161.75W) Author defined Location Common name of the location within Nanvak Bay where the banded bird was observed. Author defined Common name of the location within Nanvak Bay where the banded bird was observed. Date Date of the observation. Author defined 1992-08-18 1992-09-27 Date (YYYY-MM-DD) Observer Initials of the observer. Author defined Initials of the observer. Start_time Time at the start of the observation. Author defined 08:30 20:00 Local time 24-hrs (HH:mm) End_time Time at the end of the observation. Author defined 10:00 20:40 local time 24-hrs (HH:mm) Tide_stage The stage of the tide at the time the observation began. Blank cells indicate that tide stage was not recorded. Author defined Low Low tide Author defined High High tide Author defined Mid high The tide was rising and was halfway between low and high tide. Author defined Mid low The tide was falling and was halfway between high and low tide. Author defined Slack The tide was slack, neither rising nor falling. Author defined Telemetry_start Time when the observer began scanning for radio signals from tags that were deployed on some waterfowl. Blank cells indicate that a radio signal scan did not occur. Author defined 08:30 20:00 Local time 24-hrs (HH:mm) Telemetry_stop Time when the observer stopped scanning for radio signals from tags that were deployed on some waterfowl. Blank cells indicate that a radio signal scan did not occur. Author defined 10:00 20:40 Local time 24-hrs (HH:mm) Obs_method The type of equipment used to complete the observation. Author defined Questar 24mm Questar telescope with 24mm zoom. Author defined Weather The amount of cloud cover or the elevation of the cloud cover. Blank cells indicate that the weather was not recorded. Author defined Between 100-500 feet Clouds located between 100 and 500 feet off the ground. Author defined Broken clouds Scattered clouds with some sunny breaks. Author defined Over 500 feet Clouds located more than 500 feet off the ground. Author defined Over 800 feet Clouds located more than 800 feet off the ground. Author defined Over 1200 feet Clouds located more than 1200 feet off the ground. Author defined Over 1700 feet Clouds located more than 1700 feet off the ground. Author defined Over 1800 feet Clouds located more than 1800 feet off the ground. Author defined Over 2000 feet Clouds located more than 2000 feet off the ground. Author defined Over 2500 feet Clouds located more than 2500 feet off the ground. Author defined Over 3000 feet Clouds located more than 3000 feet off the ground. Author defined Over 4000 feet Clouds located more than 4000 feet off the ground. Author defined Wind_dir The wind direction at the time of the observation. Blank cells indicate that the wind direction was not recorded. Author defined E East Author defined ESE Eastsoutheast Author defined N North Author defined NW Northwest Author defined S South Author defined SE Southeast Author defined SW Southwest Author defined W West Author defined Wind_speed The wind speed at the time of the observation, recorded in miles per hour. Blank cells indicate that the wind speed was not recorded. Author defined 3 35 Miles per hour Precip_potential Indicates whether or not there is a potential for precipitation during the observation. Author defined Yes It is raining/snowing or will likely rain/snow. Author defined No It is not raining/snowing and will likely not rain/snow. Author defined Visibility_mi The distance that the observer could see. Blank cells indicate that the visibility was not recorded. Author defined 1 20 Miles Temp The ambient temperature at the start of the observation, recorded in degrees Fahrenheit. Blank cells indicate that the ambient temperature was not recorded. Author defined 30 35 Degrees Fahrenheit Species The common name of the species of bird observed during the observation period. Full taxonomic information is available with this data release "taxonomy_migrationObservations_togiakNWR_fondell_1992.csv". Author defined The common name of the species of bird observed during the observation period. Count The total number of birds of the species observed during the observation period. Author defined 1 8855 Integer X Many individuals of that species were observed, but were not counted. Author defined Collar_band The collar band code observed for the bird species. There may be more than one collar code per species group observation. Author defined None The species was not banded with a collar bands. Author defined UNK It was unknown if the species group contained collar banded individuals. Author defined Comments Comments recorded by the observer. Blank cells indicate that no comments were recorded. Author defined Comments recorded by the observer. taxonomy_migrationObservations_togiakNWR_fondell_1992.csv Table with taxonomic information of the observed birds. Presented in a Comma Separated Value (CSV) formatted table. Author defined Common Common name of the observed species. Author defined Common name of the observed species. Class Taxonomic hierarchical level; class. ITIS Taxonomic hierarchical level; class. Order Taxonomic hierarchical level; order. ITIS Taxonomic hierarchical level; order. Family Taxonomic hierarchical level; family. ITIS Taxonomic hierarchical level; family. Genus Taxonomic hierarchical level; genus. ITIS Taxonomic hierarchical level; genus. Species Taxonomic hierarchical level; species. Author defined Taxonomic hierarchical level; species. ITIS_TSN The ITIS Taxonomic Serial Number. ITIS Taxonomic Serial Number U.S. Geological Survey USGS ScienceBase Team Mailing and Physical

Denver Federal Center, Building 810, Mail Stop 302

Denver Colorado 80225 USA 1-888-275-8747 sciencebase@usgs.gov The U.S. Geological Survey, Alaska Science Center is the authoritative source of these data, distributed by ScienceBase (a USGS Trusted Digital Repository). Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data for other purposes or on all computer systems, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. CSV Tabular data in CSV format; FGDC metadata in XML and HTML formats. https://doi.org/10.5066/P1WH3SUH None 20250825 U.S. Geological Survey, Alaska Science Center Mailing and Physical

4210 University Drive

Anchorage Alaska 99508 USA 907-786-7000 gs-ak_asc_datamanagers@usgs.gov FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata (CSDGM) FGDC-STD-001.1-1999