Coordinated inventory of small Canada geese : central and Mississippi flyways / A.R. Brazda and Gerald Pospichael.
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TextPublication details: ND : 1963. United States Department of The Interior.Description: 3 p. : maps ; 28 cmOnline resources: Abstract: The data presented in this report is the result of a three-year effort in attempting to establish an accurate method of censusing this group of birds. The project is primarily concerned with the birds commonly referred to as lesser Canada geese (Branta canadensis parvipes) but includes some of the smaller Richardson's or Hutchins' geese (B.C.hutchinsi). However, the Two Buttes flock, associated with eastern Colorado, was not included. Originally, the first phase of the project was to cover three years, with subsequent census at two-year intervals.However, developments during the past two years have indicated the need for at least a fourth year of continuous data. Of special benefit has been the establising of a more adequate system of coverage throughout the survey area but primarily in the Canadian Provinces of Saskatchewan and Manitoba. The unusual late, warm fall periods experienced in 1962 and 1963 pointed out the necessity for increased census activity in Canada, and this objec
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The data presented in this report is the result of a three-year effort in attempting to establish an accurate method of censusing this group of birds. The project is primarily concerned with the birds commonly referred to as lesser Canada geese (Branta canadensis parvipes) but includes some of the smaller Richardson's or Hutchins' geese (B.C.hutchinsi). However, the Two Buttes flock, associated with eastern Colorado, was not included. Originally, the first phase of the project was to cover three years, with subsequent census at two-year intervals.However, developments during the past two years have indicated the need for at least a fourth year of continuous data. Of special benefit has been the establising of a more adequate system of coverage throughout the survey area but primarily in the Canadian Provinces of Saskatchewan and Manitoba. The unusual late, warm fall periods experienced in 1962 and 1963 pointed out the necessity for increased census activity in Canada, and this objec