----BOISE The Bureau of Land Management says 23 waterfowl were found dead or dying at a tailing pond operated by the DeLamar silver mine near Silver City, and the company has been ordered to come up with a plan to prevent future problems.

J. David Brunner, district manager, said Friday the birds, including five swans, apparently were killed after drinking water containing cyanide. Cyanide is commonly used in mines as a leaching agent. The mine is located in Owyhee County in southwestern Idaho.

Brunner said the dead birds were discovered by U.S. Fish and Wildlife Service and Idaho Fish and Game workers during an inspection of the mine site.

The notice of noncompliance issued Friday requires DeLamar to submit a plan within 30 days detailing how the problem will be corrected. Brunner said BLM also will seek a reclamation bond of at least $9.9 million.