Waterfowl: Population Status, 2011 (original) (raw)

2019

In the traditional survey area (strata 1-18, 20-50, and 75-77), total duck abundance was 36.1 ± 0.6 [SE] million birds. This was 14% below (P< 0.001) last year’s estimate of 41.8 ± 0.7 million birds, but still 9% above the long-term (1955-2000) average (P < 0.001). Mallard (Anas platyrhynchos) abundance was 7.9 ± 0.2 million, which is 17% below (P<0.001) the 2000 estimate of 9.5 ± 0.3 million and similar to the long-term average (P=0.08). Blue-winged teal (Anas discors) abundance was 5.8 ± 0.3 million, which was 23% below last year’s estimate of 7.4 ± 0.4 million (P=0.001), but 29% above the long-term average (P = 0.001). Green-winged teal (Anas crecca) abundance was 2.5 ± 0.2 million, 39% above the long-term average (P<0.001) but 21% lower than last year (P=0.007). Gadwall (Anas strepera; 2.7 ± 0.1 million, +66%) and northern shovelers (Anas clypeata; 3.3 ± 0.2 million, +60%), were above their long-term averages (P < 0.04), while northern pintails (Anas acuta; 3.3 ± ...

WaterfowlPopulation Status, 2003

2003

In North America the process of establishing hunting regulations for waterfowl is conducted annually. In the United States the process involves a number of scheduled meetings in which information regarding the status of waterfowl is presented to individuals within the agencies responsible for setting hunting regulations. In addition, public hearings are held and the proposed regulations are published in the Federal Register to allow public comment. This report includes the most current breeding population and production information available for waterfowl in North America and is a result of cooperative efforts by the U.S. Fish and Wildlife Service (FWS), the Canadian Wildlife Service (CWS), various state and provincial conservation agencies, and private conservation organizations. This report is intended to aid the development of waterfowl harvest regulations in the U.S. for the 2003-2004 hunting season. ________________________________________________________________________________________ Cover art: Snow geese. Ron Lougue, winner of the 2003-2004 Federal Duck Stamp design competition. efforts of numerous individuals and organizations. Principal contributors include the Canadian Wildlife Service, U.S. Fish and Wildlife Service, state wildlife conservation agencies, provincial conservation agencies from Canada, and Dirección General de Conservación Ecologica de los Recursos Naturales, Mexico. In addition, several conservation organizations, other state and federal agencies, universities, and private individuals provided information or cooperated in survey activities. Some habitat and weather information was taken from the NOAA/USDA Joint Agriculture Weather Facility (www.usda.gov/oce/waob/jawf/), Environment Canada (www1.tor.ec.gc.ca/ccrm/bulletin/), and Waterfowl Population Surveys reports (migratorybirds.fws.gov/reports/reports.html). Appendix A provides a list of individuals responsible for the collection and compilation of data for the Ducks section of this report. Appendix B provides a list of primary contacts for information included in the Geese and Swans section. We apologize for any contributor we did not acknowledge and thank all participants for their contributions. Without this combined effort, a comprehensive assessment of waterfowl populations and habitat would not be possible.

WaterfowlPopulation Status, 2006

2006

Waterfowl Population and Habitat Information: The information contained in this report is the result of the efforts of numerous individuals and organizations. Principal contributors include the Canadian Wildlife Service, U.S. Fish and Wildlife Service, state wildlife conservation agencies, provincial conservation agencies from Canada, and Direccion General de Conservacion Ecologica de los Recursos Naturales, Mexico. In addition, several conservation organizations, other state and federal agencies, universities, and private individuals provided information or cooperated in survey activities. Some habitat and weather information was taken from the NOAA/USDA Joint Agriculture Weather Facility (http://www.cpc.ncep.noaa.gov/index.html), Environment Canada (http://www.pnr-rpn.ec.gc.ca/index.en.html), and Waterfowl Population Surveys reports (http://migratorybirds.fws.gov/reports/reports.html). Appendix A provides a list of individuals responsible for the collection and compilation of data for the Ducks section of this report. Appendix B provides a list of individuals who were primary contacts for information included in the Geese and Swans section. We apologize for any omission of individuals from these lists, and thank all participants for their contributions. Without this combined effort, a comprehensive assessment of waterfowl populations and habitat would not be possible.

WaterfowlPopulation Status, 2007

2007

WaterfowlPopulation Status, 2009

2009

In North America the process of establishing hunting regulations for waterfowl is conducted annually. In the United States the process involves a number of scheduled meetings in which information regarding the status of waterfowl is presented to individuals within the agencies responsible for setting hunting regulations. In addition the proposed regulations are published in the Federal Register to allow public comment. This report includes the most current breeding population and production information available for waterfowl in North America and is a result of cooperative efforts by the U.S. Fish and Wildlife Service (FWS), the Canadian Wildlife Service (CWS), various state and provincial conservation agencies, and private conservation organizations. This report is intended to aid the development of waterfowl harvest regulations in the United States for the 2009-2010 hunting season. Cover: 2009-2010 Duck stamp. Long-tailed duck by Joshua Spies, winner of the 2008 federal duck stamp design competition. Waterfowl Population and Habitat Information: The information contained in this report is the result of the efforts of numerous individuals and organizations. Principal contributors include the Canadian Wildlife Service, U.S. Fish and Wildlife Service, state wildlife conservation agencies, provincial conservation agencies from Canada, and Dirección General de Conservación Ecológica de los Recursos Naturales, Mexico. In addition, several conservation organizations, other state and federal agencies, universities, and private individuals provided information or cooperated in survey activities. Appendix A.1 provides a list of individuals responsible for the collection and compilation of data for the "Status of Ducks" section of this report. Appendix A.2 provides a list of individuals who were primary contacts for information included in the "Status of Geese and Swans" section. We apologize for any omission of individuals from these lists, and thank all participants for their contributions. Without this combined effort, a comprehensive assessment of waterfowl populations and habitat would not be possible.

WaterfowlPopulation Status, 2008

2008

In North America the process of establishing hunting regulations for waterfowl is conducted annually. In the United States the process involves a number of scheduled meetings in which information regarding the status of waterfowl is presented to individuals within the agencies responsible for setting hunting regulations. In addition the proposed regulations are published in the Federal Register to allow public comment. This report includes the most current breeding population and production information available for waterfowl in North America and is a result of cooperative efforts by the U.S. Fish and Wildlife Service (FWS), the Canadian Wildlife Service (CWS), various state and provincial conservation agencies, and private conservation organizations. This report is intended to aid the development of waterfowl harvest regulations in the United States for the 2008-2009 hunting season. Cover: 2008-2009 Duck stamp. Northern pintails by Joe Hautman, winner of the 75th Anniversary Federal Duck Stamp Design competition. from the NOAA/USDA Joint Agriculture Weather Facility (http://www.cpc.ncep.noaa.gov/index.html), Environment Canada (http://www.pnr-rpn.ec.gc.ca/index.en.html), and Migratory Bird Population Surveys Branch reports under Waterfowl Population Surveys on the Division of Migratory Bird Management's home page (http://migratorybirds.fws.gov/reports/reports.html). Appendix A provides a list of individuals responsible for the collection and compilation of data for the "Status of Ducks" section of this report. Appendix B provides a list of individuals who were primary contacts for information included in the "Status of Geese and Swans" section. We apologize for any omission of individuals from these lists, and thank all participants for their contributions. Without this combined effort, a comprehensive assessment of waterfowl populations and habitat would not be possible.

Trends in Duck BreedingPopulations, 1955-2009

2009

This report summarizes information about the status of duck populations and wetland habitats during spring 2009, focusing on areas encompassed by the U.S. Fish and Wildlife (USFWS) and Canadian Wildlife Services' (CWS) Waterfowl Breeding Population and Habitat Survey. We do not include information from surveys conducted by state or provincial agencies. In the traditional survey area, which includes strata 1-18, 20-50, and 75-77 (Figure 1), the total duck population estimate (excluding scoters [Melanitta spp.], eiders [Somateria spp. and Polysticta stelleri ], long-tailed ducks [Clangula hyemalis], mergansers [Mergus spp. and Lophodytes cucullatus], and wood ducks [Aix sponsa]) was 42.0 ± 0.7 [SE] million birds. This estimate represents a 13% increase over last year's estimate of 37.3± 0.6 million birds and was 25% above the long-term average a (1955-2008; Table 1). Estimated mallard (Anas platyrhynchos) abundance was 8.5 ± 0.2 million birds, which was a 10% increase over last year's estimate of 7.7 ± 0.3 million birds and 13% above the long-term average (Table 2). Estimated abundance of gadwall (A. strepera; 3.1 ± 0.2 million) was similar to the 2008 estimate and 73% above the long-term average (Table 3). Estimated American wigeon abundance (A. americana) was similar to 2008 and the long-term average (−1% and −5%, respectively; Table 4). Estimated abundances of green-winged teal (A. crecca; 3.4 ± 0.2 million; Table 5) and blue-winged teal (A. discors; 7.4 ± 0.4 million; Table 6) were similar to last year's estimates and well above their long-term averages (+79% and +60%, respectively). Northern shovelers (A. clypeata; 4.4 ± 0.2 million) were 25% above the 2008 estimate and remain well above their long-term average (+92%; Table 7). The estimate for northern pintails (A. acuta) was 3.2 ± 0.2 million, which was 23% above the 2008 estimate of 2.6 ± 0.1 million, and 20% below the long-term average (Table 8). Estimated abundance of redheads (Aythya americana; 1.0 ± 0.1 million) was similar to last year and 62% above the long-term average (Table 9). The canvasback estimate (A. valisineria; 0.7 ± 0.06 million) was 35% above the 2008 estimate (0.5 ± 0.05 million) and similar to the long-term average (Table 10). The scaup estimate (A. affinis and A. marila combined; 4.2 ± 0.2 million) was similar to that of 2008 and 18% below the long-term average of 5.1 ± 0.05 million (Table 11). Habitat conditions during the 2009 Waterfowl Breeding Population and Habitat Survey were characterized by above-average moisture across the southern portions of the traditional survey area, good habitat in the eastern survey area, and late spring conditions across northern survey areas. The total pond estimate (Prairie Canada and U.S. combined) was 6.4 ± 0.2 million (Table 12, Figure 2). This a Populations are considered to have changed from the previous year or long-term average if the observed significance value associated with change is ≤ 0.10. Actual p-values are presented in tables.

Trends in Duck Breeding Populations, 1955-2006, Preliminary Report

2006

This preliminary report summarizes information about the status of duck populations and wetland habitats during spring 2006, focusing on areas encompassed by the U.S. Fish and Wildlife (USFWS) and Canadian Wildlife Services' (CWS) Waterfowl Breeding Population and Habitat Survey. This preliminary report does not include estimates from the eastern survey area or information from surveys conducted by State or Provincial agencies. A final report including survey results from the eastern survey area will be issued. In the traditional survey area, which includes strata 1-18, 20-50, and 75-77 ( ), the total duck population estimate (excluding scoters [Melanitta spp.], eiders [Somateria and Polysticta spp.], long-tailed ducks [Clangula hyemalis], mergansers [Mergus and Lophodytes spp.], and wood ducks [Aix sponsa]) was 36.2 ± 0.6 [SE]

Waterfowl: Population Status, 2005

2005

WaterfowlPopulation Status, 2001

2001

Waterfowl: Population Status, 2011 (original) (raw)

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