Aquile Norfolk Botanical Garden, Virginia
Inviato: sab feb 16, 2008 9:52 pm
http://www.wvec.com/cams/eagle.html
News di questi ultimi giorni postate da Skygirlblue.
La coppia aveva già preso possesso del nido e deposto 3 uova!
Pare ci sia un'intrusa (una civetta :shock: )
che ha provocato scompiglio, :roll: visitando il nido per tre notte di seguito,e le uova sono state lasciate sole per lungo tempo.
Poi mi sembra di capire che anche un'altra aquila ha creato problemi.
Che caos!
Per ora i biologi non si sbilanciano sul futuro delle uova.
Status of eagle nest uncertain after intruder displaces resident birds
04:38 PM EST on Friday, February 15, 2008
by Pete McElveen, WVEC.com
Online bird watchers are getting a tough lesson in the realities of nature after an invading bald eagle has disrupted the nest at Norfolk Botanical Garden.
Image courtesy Reese Lukei
The resident female at the Norfolk Botanical Garden eagle nest (left) fights off an intruder female.
Scientists say an adult bald eagle is exerting dominance over the
Garden's resident eagles. The intruder apparently forced the resident eagle pair from the nest, leaving the three eggs uncovered for long periods of time.
Biologists say it's too early to tell whether the eggs in the nest are still viable.
"What began as harrassment by an outside eagle appears to have resulted in one of our resident pair being evicted by the interloper," said Stephen Living, a wildlife biologist with the Virginia Dept. of Game and Inland Fisheries. “As Bald Eagle populations grow, there is increased competition over the prime breeding territories,” said Living.
Living says several biologists have visited the nest site recently, and are reviewing video and still images from the past few days to determine what has taken place, and who's who in the nest.
"At this point, we know we have two adult eagles in and around the breeding territory. We strongly suspect that one of these birds may be the interloper that has been seen over the last few days. We have observed them mating," said Living.
Another biologist, Reese Lukei of the College of William and Mary's Center for Conservation Biology, believes the intruder is a female. According to Lukei, it is not too late in the season for a newly arrived female to lay another clutch of eggs.
For two consecutive seasons, the eagles at Norfolk Botanical Garden have produced three eaglets which survived to fledge in the summer. Scientists say that makes it a very prolific nest, since a more typical result is two surviving eaglets.
But what has brought such intense attention to the NBG eagles is the Web cam which streams a video image of the nest around the clock over the Internet. Thousands of online eagle watchers in the U.S. and abroad monitor the progress of the eagles every day. The Eagle Cam has also been widely used as an educational tool in classrooms.
Living says that while the recent events at the nest may be upsetting, they provide a valuable learning opportunity.
"While this has certainly caused anxiety for our viewers, we have also had an unprecedented opportunity to witness some truly amazing eagle behavior. The flip side of these upsetting events is that they are the result of a healthy and growing population of Bald Eagles. In essence competitive interactions such as this occur because of the success of Bald Eagle recovery efforts," said Living.
http://www.buffalofalcons.com/forum/ind ... opic=306.0
Image courtesy Reese Lukei
The resident female at the Norfolk Botanical Garden eagle nest (left) fights off an intruder female.
News di questi ultimi giorni postate da Skygirlblue.
La coppia aveva già preso possesso del nido e deposto 3 uova!
Pare ci sia un'intrusa (una civetta :shock: )
che ha provocato scompiglio, :roll: visitando il nido per tre notte di seguito,e le uova sono state lasciate sole per lungo tempo.
Poi mi sembra di capire che anche un'altra aquila ha creato problemi.
Che caos!
Per ora i biologi non si sbilanciano sul futuro delle uova.
Status of eagle nest uncertain after intruder displaces resident birds
04:38 PM EST on Friday, February 15, 2008
by Pete McElveen, WVEC.com
Online bird watchers are getting a tough lesson in the realities of nature after an invading bald eagle has disrupted the nest at Norfolk Botanical Garden.
Image courtesy Reese Lukei
The resident female at the Norfolk Botanical Garden eagle nest (left) fights off an intruder female.
Scientists say an adult bald eagle is exerting dominance over the
Garden's resident eagles. The intruder apparently forced the resident eagle pair from the nest, leaving the three eggs uncovered for long periods of time.
Biologists say it's too early to tell whether the eggs in the nest are still viable.
"What began as harrassment by an outside eagle appears to have resulted in one of our resident pair being evicted by the interloper," said Stephen Living, a wildlife biologist with the Virginia Dept. of Game and Inland Fisheries. “As Bald Eagle populations grow, there is increased competition over the prime breeding territories,” said Living.
Living says several biologists have visited the nest site recently, and are reviewing video and still images from the past few days to determine what has taken place, and who's who in the nest.
"At this point, we know we have two adult eagles in and around the breeding territory. We strongly suspect that one of these birds may be the interloper that has been seen over the last few days. We have observed them mating," said Living.
Another biologist, Reese Lukei of the College of William and Mary's Center for Conservation Biology, believes the intruder is a female. According to Lukei, it is not too late in the season for a newly arrived female to lay another clutch of eggs.
For two consecutive seasons, the eagles at Norfolk Botanical Garden have produced three eaglets which survived to fledge in the summer. Scientists say that makes it a very prolific nest, since a more typical result is two surviving eaglets.
But what has brought such intense attention to the NBG eagles is the Web cam which streams a video image of the nest around the clock over the Internet. Thousands of online eagle watchers in the U.S. and abroad monitor the progress of the eagles every day. The Eagle Cam has also been widely used as an educational tool in classrooms.
Living says that while the recent events at the nest may be upsetting, they provide a valuable learning opportunity.
"While this has certainly caused anxiety for our viewers, we have also had an unprecedented opportunity to witness some truly amazing eagle behavior. The flip side of these upsetting events is that they are the result of a healthy and growing population of Bald Eagles. In essence competitive interactions such as this occur because of the success of Bald Eagle recovery efforts," said Living.
http://www.buffalofalcons.com/forum/ind ... opic=306.0
Image courtesy Reese Lukei
The resident female at the Norfolk Botanical Garden eagle nest (left) fights off an intruder female.
