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008180131r19931991onca|||#o    f000 0 eng d
040 |aCaOODSP|beng
043 |an-cn---
0861 |aCW69-4/89-1991E-PDF
0861 |aCW66-48/1991E-PDF
24500|aNest boxes |h[electronic resource].
250 |a[Rev. 1990]
260 |aOttawa : |bCanadian Wildlife Service, |c1993, 1991.
300 |a[6] p. : |bill.
4901 |aHinterland who's who
500 |aDigitized edition from print [produced by Environment and Climate Change Canada].
500 |a"Reprinted with corrections, 1993"--Colophon.
500 |a"Text: Based on 1961 pamphlet of same name by William H. Carrick; revised by Judith Kennedy, 1990"--Colophon.
500 |aCover title.
500 |aIssued also in French under title: Nichoirs à oiseaux.
520 |a"In Canada, about 50 species of birds, ranging in size from wrens to ducks, nest in cavities. Normally, woodpeckers and chickadees excavate these cavities in decayed trees or stumps. These birds make new holes each year, leaving the old ones for other cavity-nesting birds. Natural nest sites disappear as weakened or dying trees are removed from our forests for economic and safety reasons. As a result, there is intense competition for nest holes, with declines occurring in local populations of cavity-nesting species in recent years. By providing nest boxes in appropriate areas, we can help reverse this trend"--p. [2].
69207|2gccst|aBirds
69207|2gccst|aHabitats
69207|2gccst|aNature conservation
7001 |aCarrick, William H.
7001 |aKennedy, Judith,|d1961-
7101 |aCanada. |bEnvironment Canada.
7102 |aCanadian Wildlife Service.
77508|tNichoirs à oiseaux |w(CaOODSP)9.850972
830#0|aHinterland who's who.|w(CaOODSP)9.504437
85640|qPDF|s1.76 MB|uhttps://publications.gc.ca/collections/collection_2018/eccc/CW69-4-89-1991-eng.pdf