US Geological Survey unknown vector digital data https://wildlife.ca.gov/Data/BIOS https://filelib.wildlife.ca.gov/Public/BDB/GIS/BIOS/Public_Datasets/300_399/ds330.zip Using radio-telemetry, greater white-fronted geese (Anser albifrons frontalis) distribution and movements during winter in Central California were determined during 1998-99 and 1999-2000. Accuracy of individual data fields has been reviewed. Data collection for 1998-2000 is complete although additional years may be added. The purpose of this data set is to improve understanding of the ecology of greater white-fronted geese in California and serve as baseline data on which to impacts on white-fronted goose ecology of changes in the Central Valley landscape. These and earlier data are compared in Ackerman et al. 2006. METHODS: The study was organized and conducted by staff from the U.S. Geological Survey, Western Ecological Research Center. Geese were captured on the central Yukon-Kuskokwim Delta in Alaska during late summer by herding molting geese into corral traps. Age and sex of geese was determined and adult females were radiomarked with 30-g solar transmitters attached to numbered neck collars. Geese were released at the capture site. Using telemetry systems mounted in vehicles or aircraft, the northern Central Valley was monitored for arrival of radiotagged geese. The status (location, alive, or dead) of each goose in the northern Central Valley was determined daily by truck from 1 November to 15 March and monthly by aircraft from 1 November to 15 April each year. Two bearings from known locations were obtained using a truck-mounted dual-Yagi null-peak telemetry system to minimize time between bearings and because preliminary tests showed more bearings did not increase accuracy in our flat, open study areas. Goose locations were calculated using a modified version of XYLOG and UTMTEL (Dodge and Steiner 1986). White-fronted geese generally fly from roosting to feeding sites each morning and evening to feed in agricultural fields, and based on our field observations, we classified locations collected during morning (0531-1030 hours) and evening (1531-2230 hours) as feeding sites and midday (1031-1530 hours) and night-time (2231-0530 hours) as roosting sites. We verified feeding and roosting locations with direct observations whenever possible. REFERENCES: Ackerman, J., J. Y. Takekawa, D. L. Orthmeyer, J. P. Fleskes, J. L Yee, and K. L. Kruse. 2006. Spatial use by wintering greater white-fronted geese relative to a decade of habitat change in California’s Central Valley. Journal of Wildlife Management 70(4):965-976. (http://www.werc.usgs.gov/dixon/pdfs/Ackerman%202006%20JWM%20WFG%20CVJV.pdf). Dodge, W. E., and A. J. Steiner. 1986. XYLOG: a computer program for field processing locations of radio-tagged wildlife. U.S. Department of Interior, Fish and Wildlife Service Technical Report 4, Washington, D.C., USA. Dodge, W. E., D. S. Wilkie, and A. J. Steiner. 1986. UTMTEL: a laptop computer program for location of telemetry ‘‘finds’’ using Loran-C. Massachusetts Cooperative Research Unit Report. U.S. Fish and Wildlife Service, Amherst, Massachusetts, USA. 19980101 20000101 ground condition Complete None planned -122.259765 -121.379045 39.621306 37.934825 None telemetry Anser albifrons greater white-fronted geese ISO 19115 Topic Category biota None Central Valley California None If the information is used, credit should be given to the U.S. Geological Survey, Western Ecological Research Center, Dixon Field Station.Disclaimer: The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data. Western Ecological Research Center, U.S. Geological Survey Joseph P. Fleskes Research Wildlife Biologist mailing and physical

6924 Tremont Road

Dixon Ca 95620 707-678-0682 ext. 628 707-678-5039 joe_fleskes@usgs.gov 8:00 am - 4:30 pm Version 6.2 (Build 9200) ; Esri ArcGIS 10.5.1.7333 Attributes assigned by field personnel, accuracy of attribute information subject to error in data entry or interpretation. Incidence and degree of errors presumed to be small. Locations complete for all verifiable telemetry fixes. Single azimuth telemetry locations, anecdotal sightings, and incomplete spatial data are not included. Telemetry location determined through intersection of signal bearings. Effect of error in intersection determined in part by distance to bird and angle of bearing intersection. Errors in positional locations minor but may exceed 100 meters. Edited original metadata by adding ISO keywords. 20071023 California Department of Fish and Game Kristina White bios@dfg.ca.gov Vector Entity point 1662 NAD 1983 California Teale Albers 34.0 40.5 -120.0 0.0 0.0 -4000000.0 coordinate pair 0.0001 0.0001 meter D North American 1983 GRS 1980 6378137.0 298.257222101 ds330 OBJECTID Internal feature number. Esri Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. FREQID Unique radio frequency id. USGS DATE_OBS Date the bird was tracked USGS MONTH Month the bird was tracked USGS DAY Day of the month the bird was tracked. USGS YEAR Year the bird was tracked. USGS TIME Time the bird was tracked. USGS 20220325 US Geological Survey William Perry IT/GIS Specialist mailing and physical

6924 Tremont Road

Dixon Ca 95620 707-678-0682 ext. 619 707-678-5039 william_perry@usgs.gov 8:00 am. - 4:30 pm FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time