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 observed | total individuals |
| 1990 | 53 | 166 | 8633 | | 1991 | 68 | 169 | 16145 | | 1992 | 49 | 155 | 9638 | | 1993 | 45 | 174 | 7998 | | 1994 | 62 | 177 | 9807 | | 1995 | 68 | 174 | 11214 | | 1996 | 54 | 161 | 10665 | | 1997 | 55 | 163 | 8198 | | 1998 | 28 | 148 | 4741 | | 1999 | 29 | 161 | 5779 | | 2000 | 34 | 161 | 5946 | | 2001 | 28 | 150 | 5793 | | 2002 | 26 | 147 | 4883 | | 2003 | 29 | 154 | 6825 | | 2004 | 22 | 143 | 8126 | | 2005 | 22 | 152 | 5311 | | 2006 | 23 | 160 | 4789 | | 2007 | 20 | 146 | 4904 | | ALL | 175 | 225 | 139395 |
Last Revised:
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