Author:
Publisher:
ISBN:
Category : Bird populations
Languages : en
Pages : 6
Book Description
Summary Report of the 1957 Midwinter Waterfowl Survey in the Central Flyway
Summary Report of the 1954 Midwinter Waterfowl Survey in the Central Flyway
Waterfowl Breeding Ground Survey Report
Illinois Birds
Analyses of Selected Mid-winter Waterfowl Survey Data (1955-2003)
Author: U.S. Fish and Wildlife Service. Region 2
Publisher:
ISBN:
Category : Ducks
Languages : en
Pages : 188
Book Description
Summarizes available wintering data and displays population trends for selected species of waterfowl. Data are presented, by species, in raw data tabulation; graphs of averages; long-term trend; and short- term trend.
Publisher:
ISBN:
Category : Ducks
Languages : en
Pages : 188
Book Description
Summarizes available wintering data and displays population trends for selected species of waterfowl. Data are presented, by species, in raw data tabulation; graphs of averages; long-term trend; and short- term trend.
Analyses of Selected Mid-winter Waterfowl Survey Data (1955-2001)
Author: U.S. Fish and Wildlife Service. Region 2
Publisher:
ISBN:
Category : Ducks
Languages : en
Pages : 94
Book Description
Summarizes available wintering data and displays population trends for selected species of waterfowl. Data are presented, by species, in raw data tabulation; graphs of averages; long-term trend; and short- term trend.
Publisher:
ISBN:
Category : Ducks
Languages : en
Pages : 94
Book Description
Summarizes available wintering data and displays population trends for selected species of waterfowl. Data are presented, by species, in raw data tabulation; graphs of averages; long-term trend; and short- term trend.
Waterfowl Ecology and Management
Analyses of Selected Mid-winter Waterfowl Survey Data (1955-1987)
Author: U.S. Fish and Wildlife Service. Region 2
Publisher:
ISBN:
Category : Ducks
Languages : en
Pages : 99
Book Description
Summarizes available wintering data and displays population trends for selected species of waterfowl. Data are presented, by species, in raw data tabulation; graphs of 3-year running averages; long-term trend; and short-term trend.
Publisher:
ISBN:
Category : Ducks
Languages : en
Pages : 99
Book Description
Summarizes available wintering data and displays population trends for selected species of waterfowl. Data are presented, by species, in raw data tabulation; graphs of 3-year running averages; long-term trend; and short-term trend.
Analyses of Selected Mid-winter Waterfowl Survey Data (1955- 1995)
Author: U.S. Fish and Wildlife Service. Region 2
Publisher:
ISBN:
Category : Ducks
Languages : en
Pages : 56
Book Description
Summarizes available wintering data and displays population trends for selected species of waterfowl. Data are presented, by species, in raw data tabulation; graphs of averages; long-term trend; and short- term trend.
Publisher:
ISBN:
Category : Ducks
Languages : en
Pages : 56
Book Description
Summarizes available wintering data and displays population trends for selected species of waterfowl. Data are presented, by species, in raw data tabulation; graphs of averages; long-term trend; and short- term trend.
Analyses of Selected Mid-winter Waterfowl Survey Data (1955- 1994)
Author: U.S. Fish and Wildlife Service. Region 2
Publisher:
ISBN:
Category : Ducks
Languages : en
Pages : 57
Book Description
Summarizes available wintering data and displays population trends for selected species of waterfowl. Data are presented, by species, in raw data tabulation; graphs of averages; long-term trend; and short- term trend.
Publisher:
ISBN:
Category : Ducks
Languages : en
Pages : 57
Book Description
Summarizes available wintering data and displays population trends for selected species of waterfowl. Data are presented, by species, in raw data tabulation; graphs of averages; long-term trend; and short- term trend.