The first ten years of the co operative breeding bird survey in canada anthony j erskine 1966 75 activities of the breeding bird survey to detect and measure year to year and long term changes in population of birds particularly the smaller land birds. The first ten years of the co operative breeding bird survey in canada canadian wildlife service report series anthony j erskine on amazoncom free shipping on qualifying offers. Welcome to the north american breeding bird survey bbs web site the bbs is a cooperative effort between the us geological surveys patuxent wildlife research center and environment canadas canadian wildlife service to monitor the status and trends of north american bird populations. The first ten years of the co operative breeding bird survey in canada 61 p cher majesty the queen in right of canada as represented by the minister of environment and climate change 1978 43 boyd h and g h finney eds 1978. In the 1960s 1970s and into the early 1980s canadian wildlife service produced hinterland whos who a successful series of 60 second educational public service television clips about canadas native wildlife
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