Environment CanadaEnvironment Canada  
North American Breeding Bird Survey  
Training: BBS Methodology - Methods and Equipment [page 9/34]
When to Run Routes: Time of Day
  • Routes start ½ hour before local sunrise.
    The start time should be written on the route map and printed on the first page of the scannable data sheets.
  • Routes should be completed within 4 to 5 hours.
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