07.48
The second egg has not hatched yet.
Danish WTE web camera 2024-
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albicilla
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Re: Danish WTE web camera 2024-
APR. 12.
07.48
The second egg has not hatched yet.
07.48
The second egg has not hatched yet.
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albicilla
- Registered user
- Posts: 798
- Joined: July 13th, 2014, 11:34 am
APR. 13.
Some further information from Ole Friis Larsen in GT translation:
Ole Friis Larsen on April 13, 2025 at 5:42 PM
White-tailed eagles can easily be affected by bird flu and die from the disease. We have several examples of chicks that have died from bird flu, and we have experienced several times that adult birds have died from bird flu. There are both cases that have been confirmed by examinations of dead birds, and we ourselves have seen clear symptoms of bird flu on eagles that have then ended up dying.
We know the age of the female at the ØrneTV nest, because she is ringed and the ring has been read. She is 10 years old. She was ringed as a youngster on a nest in Sweden in 2015.
We do not know the age of the male, but to get the adult appearance, a White-tailed Eagle must be 6-7 years old. The male is slightly lighter on the head and neck than the female. We know that White-tailed Eagles tend to become lighter with age, so perhaps he is a little older than the female, but there is also individual difference in the appearance of White-tailed Eagles, and some are lighter or darker than the standard, so we cannot say for sure whether he is older than the female, or the two eagles are the same age.
White-tailed eagles can live up to 35 years. We know this especially from color-ringed German White-tailed Eagles, but ... we have an exception in a Danish pair, and she is the world's oldest documented wild White-tailed Eagle to date. She was ringed as a youngster in Germany in 1985 and is therefore 40 years old. This is probably very unusual. It is uncertain whether she can still have young, and it was uncertain whether she had a youngster last year. She is clearly old to look at with her almost bald head by now.
And just now, are there any previous observations of the ringed female? Yes, we have had her in the area for a few years, and Lars Munk, a local ornithologist who is also associated with TV Nest, has seen several times that she has had an injury with missing tail feathers on the left side over the years she has been in the area, but there are no reports that she has been seen before with dark tail feathers in her time as an adult bird. The dark tail feathers she has now don't look healthy either. They don't have the right shape, but at least for now they are narrow and pointed.
Some further information from Ole Friis Larsen in GT translation:
Ole Friis Larsen on April 13, 2025 at 5:42 PM
White-tailed eagles can easily be affected by bird flu and die from the disease. We have several examples of chicks that have died from bird flu, and we have experienced several times that adult birds have died from bird flu. There are both cases that have been confirmed by examinations of dead birds, and we ourselves have seen clear symptoms of bird flu on eagles that have then ended up dying.
We know the age of the female at the ØrneTV nest, because she is ringed and the ring has been read. She is 10 years old. She was ringed as a youngster on a nest in Sweden in 2015.
We do not know the age of the male, but to get the adult appearance, a White-tailed Eagle must be 6-7 years old. The male is slightly lighter on the head and neck than the female. We know that White-tailed Eagles tend to become lighter with age, so perhaps he is a little older than the female, but there is also individual difference in the appearance of White-tailed Eagles, and some are lighter or darker than the standard, so we cannot say for sure whether he is older than the female, or the two eagles are the same age.
White-tailed eagles can live up to 35 years. We know this especially from color-ringed German White-tailed Eagles, but ... we have an exception in a Danish pair, and she is the world's oldest documented wild White-tailed Eagle to date. She was ringed as a youngster in Germany in 1985 and is therefore 40 years old. This is probably very unusual. It is uncertain whether she can still have young, and it was uncertain whether she had a youngster last year. She is clearly old to look at with her almost bald head by now.
And just now, are there any previous observations of the ringed female? Yes, we have had her in the area for a few years, and Lars Munk, a local ornithologist who is also associated with TV Nest, has seen several times that she has had an injury with missing tail feathers on the left side over the years she has been in the area, but there are no reports that she has been seen before with dark tail feathers in her time as an adult bird. The dark tail feathers she has now don't look healthy either. They don't have the right shape, but at least for now they are narrow and pointed.