After several failed attempts over the past two decades to save northern spotted owls, federal wildlife officials are expected to announce a controversial plan to kill a competitor owl species in an effort to level the playing field.
In its draft environmental impact statement to be released early this summer, the U.S. Fish and Wildlife Service will likely suggest taking to the woods with shotguns to control the dominant barred owl population and encourage rejuvenation of the spotted owl, a conservation icon.
FWS has employed the expertise of an environmental ethicist to guide the discussions between biologists and environmentalists who are split on the issue.
"There's no winner in that debate," said Bob Sallinger, conservation director with the Portland Audubon Society in Oregon.
Doubts about the plan cover a gamut of issues, the first being feasibility. Biologists estimate hundreds of barred owls would have to be killed each year at an annual cost of about $1 million.
Others see the plan as interfering with natural selection.
"Population dynamics between two native species should not be artificially manipulated," said Blake Murden, wildlife and fisheries director for Port Blakely Tree Farms in Tumwater, Wash.
Murden says barred owls are thriving because of their adaptability while the more specialized spotted owls are easily affected by environmental changes.
"It's a generalist and a specialist, and invariably the generalist will win," Murden said.
Still others say a clamp on federal timber sales -- an effort to save the spotted owls' old-growth habitat -- has and will continue to hurt industry to benefit a species that may not be recoverable.
A limited experiment on private California timberland showed that spotted owls returned every time barred owls in the area were killed.
Biologist Lowell Diller, who holds a scientific collection permit to shoot barred owls, estimates a measured reduction of the barred owl population -- perhaps 10 to 20 percent -- would do the trick.
Then again, it might not.
"The worst thing would be to spend millions, kill a bunch of barred owls, and get no treatment effect," he said.
http://rlch.org/news/save-owl-species-others-may-be-shot