NH OSPREY PRODUCTIVITY SUMMARY: 1980-2006
Years
|
Occupied Nests
|
Active Nests
|
Successful Nests
|
Young Fledged
|
Young per Nesting Pair
|
1980
|
6
|
3
|
1
|
2
|
0.67
|
1981
|
9
|
3
|
0
|
0
|
0.00
|
1982
|
14
|
8
|
4
|
6
|
0.75
|
1983
|
20
|
11
|
4
|
7
|
0.64
|
1984
|
15
|
9
|
3
|
7
|
0.77
|
1985
|
14
|
9
|
5
|
8
|
0.89
|
1986
|
15
|
11
|
7
|
11
|
1.00
|
1987
|
18
|
10
|
7
|
16
|
1.60
|
1988
|
21
|
14
|
10
|
18
|
1.29
|
1989
|
23
|
18
|
13
|
20
|
1.11
|
1990
|
26
|
20
|
13
|
25
|
1.25
|
1991
|
21
|
17
|
10
|
24
|
1.49
|
1992
|
33
|
17
|
10
|
15
|
0.88
|
1993
|
37
|
23
|
14
|
25
|
1.09
|
1994
|
32
|
29
|
21
|
44
|
1.52
|
1995
|
33
|
25
|
14
|
30
|
1.20
|
1996
|
43
|
28
|
17
|
34
|
1.21
|
1997
|
39
|
28
|
18
|
39
|
1.39
|
1998
|
36
|
24
|
11
|
25
|
1.04
|
1999
|
34
|
22
|
13
|
28
|
1.27
|
2000
|
39
|
24
|
18
|
40
|
1.67
|
2001
|
39
|
28
|
17
|
42
|
1.50
|
2002
|
32
|
27
|
17
|
40
|
1.48
|
2003
|
44
|
30
|
23
|
54
|
1.80
|
2004
|
42
|
34
|
26
|
53
|
1.56
|
2005
|
54
|
43
|
33
|
62
|
1.44
|
2006
|
60
|
45
|
32
|
62
|
1.40
|
Totals:
27
|
799
|
560
|
361
|
737
|
1.31
|
red=state record high for the post-DDT (1970's to present day) period.
Occupied nest is defined by the routine presence of at least one potentially breeding bird a partial or complete nest
during the breeding season.
Active nest is defined by presence of an adult pair at a nest where physical evidence (presence of eggs, shell
fragments, or young) or behavioral evidence (incubation) indicates that eggs were laid.
Successful nest is defined by an active nest producing at least one young that reaches fledging age.
Young fledged is defined by nestlings, observed, or believed capable of, making flights from the nest.
[11/02/2004, updated 03/09/2006, Chris Martin, ASNH]