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North American Breeding Bird Survey  
Training: BBS Methodology - Methods and Requirements [page 11/34]
Weather Problems
Avoid days when it is raining If the weather is unfavorable, it is always better to reschedule your BBS run. However, if time constraints prevent you from rescheduling, here some approaches to completing your route:
  • You arrive at the start point but it is raining.
    • Wait up to 30 minutes for the rain to stop. If the rain stops within 30 minutes, run the route as normal. We will not use data if there is more than a 30 min delay in starting.
  • It begins raining while you are doing the survey.
    • We allow 6.5 hours for the completion of a route. Stop and wait for the shower to pass as long as the total time for route completion will not exceed 6.5 hours.
    • Suspend the route noting the time and stop number where you stopped. Return when the weather conditions are acceptable within one week and complete the route starting where and when you left off.
  • Winds become excessive while running the route.
    • If winds become excessive in the middle of the route, then suspend the route noting the time and stop number where you stopped. Return when the weather conditions are acceptable within one week and complete the route starting where and when you left off.
    • If winds become excessive within the last five stops, note at which stop it began and complete the route. If five or fewer stops are affected, we will still use the data.
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U.S. Department of the Interior | U.S. Geological Survey
Patuxent Wildlife Research Center Laurel, MD, USA 20708-4038
http://www.pwrc.usgs.gov/bbs
Operations Contact: Keith Pardieck, email: Keith_Pardieck@usgs.gov
Analyses Contact: John Sauer, email: John_Sauer@usgs.gov
Last Modified: 10/31/01
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