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Bird Point Database US Geological Survey Patuxent Wildlife Research Center National Wildlife Refuge System bird point count database U.S. Fish & Wildlife Service


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Sherburne NWR
National Wildlife Refuge
MN
244
Prairie Hardwood Transition
Boreal Hardwood Transition
1994-2011
Elizabeth Berkley
2
Inventory | List of Points with Coodinates

Studies


Study name:
  Start year:1994
  Purpose:
  Field Method:5,10min w/ 50,100,>100m
  Surveys:
Survey yearPoints surveyedSurveys
1994 33 1.00 per point
1995 68 1.00 per point
2000 68 1.00 per point
2001 67 1.06 per point
2009 60 1.00 per point
2010 60 1.00 per point
2011 60 1.00 per point


Study name:
  Start year:1999   End year:2007
  Purpose:
  Field Method:SecretiveMarshbird (Conway)
  Surveys:
Survey yearPoints surveyedSurveys
2003 56 4.00 per point
2004 56 3.00 per point
2005 56 3.23 per point
2006 56 3.00 per point
2007 56 2.77 per point