28-01-2008, 09:37 PM
it seems to be a common site on my local marshes to keep seeing swans dead under power lines, even if there is reflective discs on the cables they still hit them just so annoying that nothing can be done to prevent this





I have not had that happen before! The article was originally in a Japanese newspaper, in English. At any rate, this is the article:
Luminescent plates to help keep swans off power lines
The Yomiuri Shimbun
YAMAGATA--Tohoku Electric Power Co. has started testing luminescent plates it has developed to keep swans away from power lines and electricity pylons as a measure to protect the birds from accidents.
Mogamigawa Swan Park in Sakata, Yamagata Prefecture, is known as the nation's most popular stopover for swans, but accidents often occur nearby involving birds hitting power lines or crashing into pylons.
The Sendai-based company hopes that placing the plates on power lines and other equipment in or nearby the park will help make them more visible to swans. People active in promoting the protection of swans also hope the plates will help prevent accidents involving the birds.
The park and the area surrounding it have been the nation's most popular winter home for swans for the past 11 years, with about 10,000 swans flying in each year. This winter, the first flock of swans arrived in mid-October and by the end of November about 9,000 swans had arrived, according to a local volunteer swan-conservation group.
According to the group, about 20 swans are found dead near the pylons or under electric power cables in the vicinity of the park every winter. "As there are no tall buildings other than the pylons around the park, the birds are quite likely to hit the pylons or the power cables," said Keiji Ikariya, head of the group.
Over the past 20 years, Tohoku Electric Power has taken measures to prevent these accidents such as coloring the rings it attaches to power lines to stop the accumulation of snow. But these measures have not been effective. To make the pylons and cables more visible to the birds, the company has started using a material that accumulates light during the daytime and emits it at night so that the towers and cables will be luminescent in the dark.
The company has made about 1,000 of the oval plates, which are 10 centimeters by 4.5 centimeters in size, and attached them to the top of a 45-meter-high pylon, three kilometers from the park, at intervals of between 30 and 150 centimeters.
"I think the plates will be more visible to the swans as they have a large surface area," said the deputy chief of Tohoku Electric Power's technical center in the city. They also will check the durability and the luminescent performance of the plates, and consider ways to improve them.
Kingfisher