PRODUCTIVITY
ARIZONA BALD EAGLE NEST SITES (FINAL COUNT) 2002
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Table 1.
Arizona bald eagle breeding area productivity summary, 2002.
Breeding area status codes (Postupalsky 1974): U=unoccupied,
O=occupied, S=successful, F=failed.
|
Breeding Area |
Status 1 |
Nest 2 |
Incubation
Date |
Eggs |
Hatch Date |
Young |
Fledged |
Fledge Date |
| Alamo |
S |
4 |
<2/1 |
1+ |
2/1-3/11 |
1 |
1 |
4/23-5/9 |
| Bartlett* |
F |
2 |
1/7-2/1 |
1+ |
9-Mar |
1 |
Failed 3/22. |
| Nestling died in nest at 1 week old. |
| Becker |
O |
|
| Blue Point |
S |
10 |
1/8-2/5 |
2+ |
2/5/2022 |
2 |
2 |
5/10/2021 |
| Box Bar* |
S |
3 |
<1/7 |
2+ |
2/9/2011 |
2 |
1 |
26-Apr |
| One nestling taken to rehab on
3/22. Cross-beak and non-releasable. |
| Camp Verde |
U |
|
| Canyon |
U |
|
| Cedar Basin |
O |
|
| Cibecue |
F |
2 |
2/5-3/12 |
1+ |
Failed 3/12-4/16. |
| Cliff |
O |
|
| Coldwater |
S |
3 |
2/1-3/11 |
2+ |
3/11-4/23 |
2 |
2 |
5/21-6/6 |
| Coolidge |
F |
2 |
2/5-3/12 |
2+ |
3/12-4/16 |
2 |
Failed 6/6-20 |
| Two nestlings died in nest at 8-10 weeks old. |
| Devil’s Post |
U |
|
| Doka* |
S |
2 |
12/7-1/7 |
2+ |
1/7-2/1 |
2 |
2 |
4/13, 4/27 |
| Dupont |
U |
|
| East Verde |
F |
6 |
2/1-2/26 |
2 |
Failed 3/11-4/23. |
| Fort McDowell* |
S |
16 |
12/7-1/7 |
2+ |
1/7-2/12 |
2 |
2 |
26-Apr |
| Granite Basin |
O |
|
| Granite Reef* |
S |
1 |
2/8-2/10 |
2+ |
3/18-2/21 |
2 |
2 |
2-Jun |
| Horse Mesa |
S |
4 |
1/8-2/5 |
1+ |
2/5-3/12 |
1 |
1 |
5/21-6/6 |
| Horseshoe |
S |
11 |
1/7-2/1 |
2+ |
3/11-4/14 |
2 |
2 |
5/21-6/6 |
| One nestling last observed at 8.5 weeks of age. |
| Ive’s Wash |
O |
|
| Ladders* |
S |
3 |
2/1-2/21 |
2+ |
3/11-3/16 |
2 |
2 |
6/8, 6/15 |
| Lone Pine |
F |
2 |
1/8-2/5 |
1+ |
Failed 2/5-3/12. |
| Luna* |
S |
1 |
<1/10 |
2+ |
3/8/2009 |
2 |
2 |
6/2, 6/8 |
| Lynx* |
F |
1 |
<1/7 |
1+ |
Failed 3/1. |
| Mule Hoof |
U |
|
| Needle Rock* |
S |
2 |
<3/1 |
2+ |
<3/1 |
1 |
1 |
16-May |
| Nestling and nest fell out on 5/4 and 5/11. Returned to alternate nests on
5/5 and 5/14. Shot and taken to rehab on 5/18. |
| Oak Creek |
S |
1 |
<4/23 |
2+ |
<4/23 |
2 |
2 |
5/3-6/6 |
| Orme* |
S |
6 |
1/7-2/1 |
2+ |
26-Feb |
2 |
2 |
5/26/1931 |
(Nest numbers are from Hunt et al. 1992; Driscoll et al. 1992;
Driscoll and Beatty 1994; Driscoll et al. 1995a, 1995b, 1997, 1998, 1999,
2001; Koloszar and Driscoll 2002.)
|
Table 1 (continued). |
|
Breeding Area |
Status 1 |
Nest 2 |
Incubation Date |
Eggs |
Hatch Date |
Young |
Fledged |
Fledge Date |
| Perkinsville |
F |
4 |
2/1/2025 |
1 |
Failed 3/18-4/23. |
| Pinal |
S |
6 |
<3/12 |
1 |
<3/12 |
1 |
1 |
>6/6 |
| Pinto |
F |
4 |
1/8-2/5 |
1+ |
Failed 2/5-3/4. |
| Pleasant* |
S |
2 |
2/1/2010 |
1+ |
3/18/2022 |
1 |
1 |
15-May |
| Redmond |
F |
5 |
1/8-2/5 |
2 |
Failed 3/12-29. |
| Rodeo* |
S |
2 |
1/7-2/1 |
2 |
2-Mar |
1 |
1 |
24-May |
| Rock Creek |
S |
2 |
2/5-3/12 |
1+ |
3/12-5/20 |
1 |
1 |
>6/6 |
| San Carlos |
F |
3 |
2/5-3/12 |
1+ |
3/12-4/16 |
1 |
Failed 5/22-6/6. |
| Nestling died in nest at 6-8 weeks old |
| Seventy Six (76) |
O |
|
| Sheep |
S |
3 |
1/8-2/5 |
2+ |
2/5-3/6 |
2 |
2 |
5/21-6/6 |
| Suicide |
F |
2 |
<3/12 |
3+ |
<3/12 |
3 |
Failed 4/16-5/10. |
| All three nestlings died in nest at 11 weeks old. |
| Sycamore* |
S |
4 |
12/18-1/7 |
2+ |
2/1/2008 |
2 |
1 |
27-Apr |
| One nestling taken to rehab on 3/20 with broken tarsus and broken pelvic bone. |
| Table Mountain |
O |
|
| Talkalai |
S |
6 |
1/8-2/5 |
2+ |
2/5-3/12 |
2 |
2 |
5/10-6/6 |
| Tonto* |
S |
2 |
1/8-2/5 |
2+ |
2/18/2022 |
2 |
2 |
5/15/2021 |
| Tower* |
S |
8 |
1/7/2024 |
2+ |
28-Feb |
2 |
2 |
5/27/1931 |
| Winkelman |
U |
|
Breeding area status codes (Postupalsky 1974): U=unoccupied,
O=occupied, S=successful, F=failed.
Nest numbers are from Hunt et al. 1992; Driscoll et al. 1992;
Driscoll and Beatty 1994; Driscoll et al. 1995a, 1995b, 1997, 1998, 1999,
2001; Koloszar and Driscoll 2002.
* Nests monitored by the Arizona Bald Eagle Nestwatch Program.
Table 2.
Arizona bald eagle productivity summary, 2002. (TOTALS)
| Number of BAs |
47 |
|
Number of Active BAs |
34 |
| Number of Occupied BAs |
41 |
|
Number of Failed Breeding Attempts |
11 |
| Number of Eggs |
57+ |
|
Number of Successful Breeding Attempts |
23 |
| Nest Success = 23/41 |
0.56 |
|
Number of Young Hatched |
46 |
| Mean Brood Size = 37/24 |
1.54 |
|
Number of Young Fledged |
37 |
| Productivity = 0.56 x 1.54 |
0.86 |
|
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