Title: Nesting Pairs up, productivity down Bald Eagles in NJ
Post by: Donna on 13-Sep-10, 06:53:33 AM
The 2010 NJ bald eagle nesting has ended and the young eagles have left their nest areas and are heading out on their own. This season there was a high of 94 eagle pairs being monitored. Eighty-two of these pairs were active (laid eggs), 8 were territorial and it was unknown if and where 4 other pairs were nesting. Thirteen new pairs of eagles were located this season. Good news, the NJ bald eagle population is increasing.
Forty-three nests were successful in producing 69 young, for a productivity rate of .84 young per active nest. This is slightly below the required range of 0.9-1.1 young per nest for population maintenance. Unfortunately there were 32 nests which failed to produce young this season. Many of the failures can be attributed to the severe winter and spring weather which coincided with the eagle nesting season. But every population has fluctuations so this one off season won’t effect the NJ eagle population in the long term.
More details will be available in the Annual Bald Eagle Project report which will be out by the end of the year.
Forty-three nests were successful in producing 69 young, for a productivity rate of .84 young per active nest. This is slightly below the required range of 0.9-1.1 young per nest for population maintenance. Unfortunately there were 32 nests which failed to produce young this season. Many of the failures can be attributed to the severe winter and spring weather which coincided with the eagle nesting season. But every population has fluctuations so this one off season won’t effect the NJ eagle population in the long term.
More details will be available in the Annual Bald Eagle Project report which will be out by the end of the year.
Title: Re: Nesting Pairs up, productivity down Bald Eagles in NJ
Post by: valhalla on 13-Sep-10, 07:25:17 AM
I haven't seen the GWL eagles, but I'm determined to - especially since I'm thinking a NJ nest on or near Fox Island and a NY nest on the east shore.
Title: Re: Nesting Pairs up, productivity down Bald Eagles in NJ
Post by: dbishop on 13-Sep-10, 08:59:33 AM
Not bad for a species that was almost extinct in NJ in 1982 (1 recorded nest).
There is a big issue finding homes for injured birds now. They live for 40 years in captivity. I know that the 3 at the Senica park zoo have been there for many years now. One person I know has been asked twice to take one on.
There is a big issue finding homes for injured birds now. They live for 40 years in captivity. I know that the 3 at the Senica park zoo have been there for many years now. One person I know has been asked twice to take one on.