Status Reports On Twelve Raptors

Author : David Lawrence Evans
Publisher : Unknown
Page : 76 pages
File Size : 49,6 Mb
Release : 1982
Category : Birds of prey
ISBN : UOM:39015077574997

Get Book

Status Reports on Twelve Raptors by David Lawrence Evans Pdf

Depletion of fisheries due to acid rain may pose a future threat to bald eagle and osprey populations in some regions. Loss of essential habitat has affected declines in the caracara and western burrowing owl and the disappearance of the norther aplomado falcon from the southern United States. Most populations of the ferruginous hawk, marsh hawk, and prairie falcon appear stable; habitat loss is the most critical factor in population changes.

Author : Anonim
Publisher : Unknown
Page : 156 pages
File Size : 46,5 Mb
Release : 198?
Category : Electronic
ISBN : WISC:89043697408

Get Book

Snake River birds of prey area annual report by Anonim Pdf

Author : Anonim
Publisher : Unknown
Page : 136 pages
File Size : 51,8 Mb
Release : 1981
Category : Fishery management
ISBN : CHI:33613722

Get Book

Special Scientific Report by Anonim Pdf

Author : U.S. Fish and Wildlife Service
Publisher : Unknown
Page : 76 pages
File Size : 46,6 Mb
Release : 1982
Category : Fishes
ISBN : MINN:30000010644247

Get Book

Special Scientific Report--wildlife by U.S. Fish and Wildlife Service Pdf

Author : Anonim
Publisher : Unknown
Page : 80 pages
File Size : 40,5 Mb
Release : 1982
Category : Wildlife conservation
ISBN : UOM:39015018210065

Get Book

Special Scientific Report--wildlife by Anonim Pdf

Author : Anonim
Publisher : Unknown
Page : 340 pages
File Size : 42,8 Mb
Release : 1990
Category : Estuarine animals
ISBN : UCSC:32106010188438

Get Book

Status and Trends Report on Wildlife of the San Francisco Estuary by Anonim Pdf

Author : United States. Bureau of Land Management. Boise District Office
Publisher : Unknown
Page : 166 pages
File Size : 50,7 Mb
Release : 2024-06-26
Category : Birds of prey
ISBN : IND:30000132753751

Get Book

Snake River Birds of Prey Research Project by United States. Bureau of Land Management. Boise District Office Pdf

Author : Jerome H. Stoudt
Publisher : Unknown
Page : 40 pages
File Size : 43,7 Mb
Release : 1982
Category : Bird populations
ISBN : UOM:39015077574807

Get Book

Habitat Use and Productivity of Canvasbacks in Southwestern Manitoba, 1961-72 by Jerome H. Stoudt Pdf

A study of canvasback (Aythya valisineria) breeding populations, nest success, productivity, and habitat requirements was conducted from 1961 to 1972 on a 181.3 square kilometer area south of Minnedosa, Manitoba.

Author : Richard D. Atkinson,Thomas S. Baskett,Kenneth C. Sadler
Publisher : Unknown
Page : 28 pages
File Size : 49,6 Mb
Release : 1982
Category : Bird populations
ISBN : UOM:39015077574971

Get Book

Population Dynamics of Mourning Doves Banded in Missouri by Richard D. Atkinson,Thomas S. Baskett,Kenneth C. Sadler Pdf

Most mourning doves (Zenaida macroura) banded in eastern Missouri in 1968-76 and recovered outside the State moved south-southeast into Kentucky, Tennessee, Mississippi, Alabama, Georgia, Florida, and South Carolina. Most doves banded in central and western Missouri and recovered elsewhere moved south-southwest into Kansas, Oklahoma, Louisiana, Texas, Mexico, and Central America. Several central Missouri doves moved southeast.

Author : Anonim
Publisher : Unknown
Page : 136 pages
File Size : 51,5 Mb
Release : 1982
Category : Bird banding
ISBN : UOM:39015077574989

Get Book

Migration, Harvest, and Population Dynamics of Mourning Doves Banded in the Central Management Unit, 1967-77 by Anonim Pdf

A banding program for mourning doves (Zenaida macroura) was conducted by the 14 Central Management Unit (CMU) States and the U.S. FIsh and Wildlife Service during 1967-74. Banding and recovery records, as well as data from annual call-count and harvest surveys, were subsequently analyzed by a subcommittee of the Central Migratory Shore and Upland Game Bird Technical Committee. This paper presents information on mourning dove habitat, hunting regulations, and harvest in the CMU; distribution and derviation of band recoveries in and from CMU; distribution of mourning dove harvest in Mexico and Central America; chronology of migration; survival and recovery rates; effects of hunting on CMU mourning dove populations; and indirect nationwide mourning dove population estimates.

Author : G. Vernon Byrd,Dennis W. Woolington
Publisher : Washington, D.C. : U.S. Department of the Interior, Fish and Wildlife Service
Page : 24 pages
File Size : 41,8 Mb
Release : 1983
Category : Birds
ISBN : UOM:39015077575267

Get Book

Ecology of Aleutian Canada Geese at Buldir Island, Alaska by G. Vernon Byrd,Dennis W. Woolington Pdf

Report on a study of the only known breeding population of the endangered Aleutian Canada goose (Brauta canadensis leucopareia) from 1974 to 1977 at Buldir Island, a western Aleutian island, Alaska.

Author : Stephen A. Boyle,Fred B. Samson
Publisher : Unknown
Page : 120 pages
File Size : 45,8 Mb
Release : 1983
Category : National parks and reserves
ISBN : UOM:39015077574955

Get Book

Nonconsumptive Outdoor Recreation by Stephen A. Boyle,Fred B. Samson Pdf

Nonconsumptive outdoor recreation has increased greatly in recent years, and there is growing concern about the effects of such activities on wildlife and wildlife habitats. Unfortunately, information concerning these effects is scare and widely scattered. To stimulate research and assist resource planners and managers in utilizing available information, an annotated bibliography of human-wildlife interactions is provided. The report reviews interactions between wildlife and humans participating in nonconsumptive outdoor recreation activities. Also provided are indexes to authors, species, keywords and geographic regions; an annotated list of keywords; and a list of bibliographies on related topics.

Author : Samuel M. Carney,Michael F. Sorensen,Elwood Martin
Publisher : Unknown
Page : 52 pages
File Size : 55,9 Mb
Release : 1983
Category : Duck stamps
ISBN : UOM:39015077574963

Get Book

Duck Stamps Sold Within States and Counties During Sales Years 1971-72 Through 1980-81 by Samuel M. Carney,Michael F. Sorensen,Elwood Martin Pdf

This report summarizes duck stamp sales for sales years 1971-72 through 1980-81 in the same manner as in Carney et al. (178). The intent is to continue to publish 10-year summaries at 5-year intervals.

Author : Curtice R. Griffin,Thomas S. Baskett,Rollin D. Sparrowe
Publisher : Unknown
Page : 20 pages
File Size : 55,6 Mb
Release : 1982
Category : Bald eagle
ISBN : UOM:39015077574815

Get Book

Ecology of Bald Eagles Wintering Near a Waterfowl Concentration by Curtice R. Griffin,Thomas S. Baskett,Rollin D. Sparrowe Pdf

Bald eagles (Haliaeetus leucocephalus) associate with wintering waterfowl concentrations throughout the United States, but little detailed information is available on eagle-waterfowl relations. This report concerns the ecology of bald eagles wintering in the vicinity of Swan Lake National Wildlife Referenc in north-central Missouri and, more specifically, examines the association of the eagles with waterfowl during the winters of 1975-76, 1976-77, and 1977-78

Author : Leigh M. Couling,A. R. Sen,Elwood Martin
Publisher : Unknown
Page : 298 pages
File Size : 47,7 Mb
Release : 1982
Category : Hunting surveys
ISBN : UCSD:31822009785338

Get Book

Reliability of Kill and Activity Estimates in the U.S. Waterfowl Hunter Survey by Leigh M. Couling,A. R. Sen,Elwood Martin Pdf

A mail questionnaire survey of waterfowl hunters is conducted each year in the United States to provide information on waterfowl kill and hunter activity. We carried out a study using data from the 1971-73 and 1972-73 hunting seasons to determine the effectiveness of the present U.S. sampling and estimation techniques, and a number of modifications in both sampling and analysis is recommended.