Environment CanadaEnvironment Canada  
North American Breeding Bird Survey  
Training: BBS Methodology - The BBS Route [page 24/34]
Route Description
Survey routes are approximately 24.5 miles (39.2 km) long and in most cases are located on suitable secondary roads. Routes are established in the BBS office using a stratified random methodology to choose the start points and direction of the route. A map indicating the start point and path of the BBS route will be provided to you prior to the start of the BBS season.
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Patuxent Wildlife Research Center Laurel, MD, USA 20708-4038
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