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Bird surveys at McKinley Bay and Hutchison Bay, Northwest Territories, in 1991

Technical Report:

Abstract

McKinley Bay is a shallow protected bay along the eastern Beaufort Sea coast which provides an important habitat for diving ducks. Since 1979, the bay has been the site of a winter harbor and support base for oil and gas exploraton in the Beaufort Sea. Aerial surveys for bird abundance and distribution were conducted in August 1991 as a continuation of long-term monitoring of birds in McKinley Bay and Hutchison Bay, a nearby area used as a control. The main objectives of the 1991 surveys were to expand the set of baseline data on natural annual fluctuations in diving duck numbers, and to determine if numbers of diving ducks had changed since the initial 1981-85 surveys. On the day with the best survey conditions, the population of diving ducks at McKinley bay was estimated at ca 32,000, significantly more than 1981-85. At Hutchison Bay, there were an estimated 11,000 ducks. As in previous years, large numbers of diving ducks were observed off Atkinson Point at the northwest corner of McKinley Bay, at the south end of the bay, and in the northeast corner near a long spit. Most divers in Hutchison Bay were at the west side. Diving ducks, primarily  More>>
Publication Date:
Mar 01, 1992
Product Type:
Technical Report
Report Number:
CWS/WNR-92-07060; MICROLOG-92-07060
Reference Number:
CANM-93-0E7573; EDB-94-021391
Resource Relation:
Related Information: Technical report series, No. 147
Subject:
54 ENVIRONMENTAL SCIENCES; NORTHWEST TERRITORIES; BIRDS; AERIAL SURVEYING; BAYS; BEAUFORT SEA; OFFSHORE OPERATIONS; SPATIAL DISTRIBUTION; ANIMALS; ARCTIC OCEAN; CANADA; COASTAL WATERS; DEVELOPED COUNTRIES; DISTRIBUTION; NORTH AMERICA; SEAS; SURFACE WATERS; VERTEBRATES; 540310* - Environment, Aquatic- Basic Studies- (1990-); 540210 - Environment, Terrestrial- Basic Studies- (1990-)
OSTI ID:
5642259
Research Organizations:
Canadian Wildlife Service, Edmonton, AB (Canada). Western and Northern Region
Country of Origin:
Canada
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0831-6481; Other: ISBN: 0-662-19405-5
Availability:
PC Environment Canada Departmental Library, Att: Pierre Trudel, Acquisitions, 351 St. Joseph Blvd., 2nd Fl., Ottawa, ON, CAN K1A 0H3; MF CANMET/TID, Energy, Mines and Resources Canada, 555 Booth St., Ottawa, Ont., Canada K1A 0G1 PC
Submitting Site:
CANM
Size:
Pages: (63 p)
Announcement Date:

Technical Report:

Citation Formats

Cornish, B J, Dickson, D L, and Dickson, H L. Bird surveys at McKinley Bay and Hutchison Bay, Northwest Territories, in 1991. Canada: N. p., 1992. Web.
Cornish, B J, Dickson, D L, & Dickson, H L. Bird surveys at McKinley Bay and Hutchison Bay, Northwest Territories, in 1991. Canada.
Cornish, B J, Dickson, D L, and Dickson, H L. 1992. "Bird surveys at McKinley Bay and Hutchison Bay, Northwest Territories, in 1991." Canada.
@misc{etde_5642259,
title = {Bird surveys at McKinley Bay and Hutchison Bay, Northwest Territories, in 1991}
author = {Cornish, B J, Dickson, D L, and Dickson, H L}
abstractNote = {McKinley Bay is a shallow protected bay along the eastern Beaufort Sea coast which provides an important habitat for diving ducks. Since 1979, the bay has been the site of a winter harbor and support base for oil and gas exploraton in the Beaufort Sea. Aerial surveys for bird abundance and distribution were conducted in August 1991 as a continuation of long-term monitoring of birds in McKinley Bay and Hutchison Bay, a nearby area used as a control. The main objectives of the 1991 surveys were to expand the set of baseline data on natural annual fluctuations in diving duck numbers, and to determine if numbers of diving ducks had changed since the initial 1981-85 surveys. On the day with the best survey conditions, the population of diving ducks at McKinley bay was estimated at ca 32,000, significantly more than 1981-85. At Hutchison Bay, there were an estimated 11,000 ducks. As in previous years, large numbers of diving ducks were observed off Atkinson Point at the northwest corner of McKinley Bay, at the south end of the bay, and in the northeast corner near a long spit. Most divers in Hutchison Bay were at the west side. Diving ducks, primarily Oldsquaw and scoter, were the most abundant bird group in the study area. Observed distribution patterns of birds are discussed with reference to habitat preferences. 16 refs., 7 figs., 30 tabs.}
place = {Canada}
year = {1992}
month = {Mar}
}