State Natural Area Breeding Bird Surveys
1990-2007

Survey Effort by Year

This table shows survey effort for each year; the number of surveys completed is always greater than the number of areas surveyed because some areas were surveyed multiple times, either to survey different habitats separately, or to survey the entire area again on a different date.

year# areas surveyed# species observedtotal individuals
1990531668633
19916816916145
1992491559638
1993451747998
1994621779807
19956817411214
19965416110665
1997551638198
1998281484741
1999291615779
2000341615946
2001281505793
2002261474883
2003291546825
2004221438126
2005221525311
2006231604789
2007201464904
ALL175225139395
Last Revised: