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Bald Eagles in Maryland

2004 Maryland Mid-winter Bald Eagle Survey

Maryland Mid-winter Bald Eagle Survey, 1979-2004

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Maryland Bald Eagle Nest Success and Productivity, 1977-2004

Year Occupied
Nests		 Active
Nests		 Successful
Nests		 Young Nest Successa (%)
 Productivitya
Successful
per
Occupied		 Successful
per
Active		 Young
per
Occupied		 Young
per
Active		 Young
per
Successful
1977 41 39 27 45 65.9 69.2 1.10 1.15 1.67
1978 47 44 26 37 55.3 59.1 0.79 0.84 1.42
1979 51 49 24 38 47.1 49.0 0.74 0.78 1.58
1980 53 48 25 35 47.2 52.1 0.66 0.73 1.40
1981 53 50 30 51 56.6 60.0 0.96 1.02 1.70
1982 58 56 35 55 60.3 62.5 0.95 0.98 1.57
1983 59 55 40 70 72.7 1.00 1.07 1.02 1.48
1984 60 55 40 70 66.7 72.7 1.17 1.27 1.75
1985 62 59 41 77 66.1 69.5 1.24 1.31 1.88
1986 66 65 55 102 83.3 84.6 1.55 1.57 1.85
1987 86 84 68 121 79.1 80.9 1 .41 1.44 1.78
1988 97 95 77 135 79.4 81.0 1.39 1.42 1.75
1989 97 94 72 117 74.2 76.6 1.21 1.24 1.61
1990 123 115 92 164 74.8 80.0 1.33 1.43 1.78
1991 128 123 92 169 71.9 74.8 1.32 1.37 1.88
1992 152 146 112b 185 73.7 76.7 1.22 1.27 1.65
1993 154 147 101 168 65.6 68.7 1.09 1.14 1.66
1994 157 148 109 192 70.3 73.6 1.23 1.31 1.76
1995 182 171 139 265 76.4 81.3 1.46 1.55 1.91
1996 201 191 144b 265 74 .3 78.7 1.37 1.45 1.84
1997 219 202 150c 282 71.4 77.7 1.34 1.46 1.88
1998 232 215 162d 295 71 .7 77.5 1.31 1.41 1.82
1999 260 247 200d 370 578.7 82.9 1.46 1.53 1.85
2000 270 256 208e 395 78.2 82.5 1.48 1.57 1.90
2001 315 297 233b 432 75.9 80.6 1.41 1.49 1.85
2002 321 293 - - 68.9 f 78.5f 1.25f 1.43f 1.82f
2003 346 305 - - 72.3f 77.9f 1.09f 1.17f 1.51f
2004 390 368 - - 70.1f 72.3f 1.17f 1/21f 1.67
a based on nests with known outcomes
b final outcome of eight nests not determined and not included in total
c final outcome of nine nests not determined and not included in total
d final outcome of six nests not determined and not included in total
e final outcome of four nests not determined and not included in total
f as determined from nesting results within selected watersheds
Note: Occupied nests equate to the number of breeding pairs of bald eagles.  Active nests are those nests with evidence that eggs were laid by the breeding pairs.

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This page up-dated Monday January 07, 2008