000 02079nam  2200397za 4500
0019.856764
003CaOODSP
00520221107155616
007cr |||||||||||
008180518s1990    bccb    ob   f000 0 eng d
020 |z0662184807
022 |z0831-6481
040 |aCaOODSP|beng
041 |aeng|bfre
043 |an-cn-bc|an-cn-yk
0861 |aCW69-5/115E-PDF|zCW69-5/115E
1001 |aMcKelvey, Richard W.
24514|aThe status of trumpeter swans in British Columbia and Yukon, summer, 1990 |h[electronic resource] / |cR. McKelvey, J. Hawkings.
260 |aDelta, B.C. : |bCanadian Wildlife Service, Pacific and Yukon Region, |c1990.
300 |aiii, 27 p. : |bcol. maps.
4901 |aTechnical report series ; |vno. 115
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
504 |aIncludes bibliographical references (p. 11).
5203 |a"A survey of breeding Trumpeter Swans (Cygnus c. buccinators) was conducted in British Columbia and the Yukon in 1990. Survey routes were similar to those used in the 1985 survey, with the addition of one new route in the Beaver Creek area of the Yukon. A total of 322 adult (white) swans and 125 cygnets was seen. That represents an increase of 87.8% since 1985. Productivity in 1990 was 28.0%. Habitat conditions were good to excellent. Survival appears to be good in spite of the difficulties reported on wintering areas in the Wyoming-Montana-Idaho area of the United States"--Abstract.
530 |aIssued also in print format.
546 |aIncludes abstract in French.
693 4|aTrumpeter swan
693 4|aBird surveys
693 4|aBritish Columbia
693 4|aYukon
7001 |aHawkings, J.
7101 |aCanada. |bEnvironment Canada.
7102 |aCanadian Wildlife Service. |bPacific and Yukon Region.
830#0|aTechnical report series (Canadian Wildlife Service)|vno. 115.|w(CaOODSP)9.504438
85640|qPDF|s2.77 MB|uhttps://publications.gc.ca/collections/collection_2018/eccc/cw69-5/CW69-5-115-eng.pdf