Canada Geese Falling From
Oregon Skies - Experts Baffled

From Patricia Doyle, PhD
Hi Jeff - We never did receive any conclusive cause identified in previous Canada goose die-offs. In 2001, there was a Brant die-off in New Jersey. Here again, we never found out what killed the Brant Geese. Let us hope that the cause this new sad event can be identified.
Patricia Doyle From ProMED-mail
Geese Die In Droves In Keizer - Experts
Baffled Bodies Of Water Don't Appear To Be The Cause
By Crystal Bolner
Salem Statesman Journal
Oregon 2-2-5
Geese are literally falling from the sky in and around Keizer, and wildlife experts don't know why.
About 150 Canada geese were found dead Friday at a private pond off Wheatland Road owned by Morse Bros. Rock Products in rural Marion County. 30 or so other dead birds were discovered 3 months ago near Staats Lake, a private lake in Keizer.
State wildlife officials visited both sites to investigate. The officials suspect that the birds may have died from something they ate, because it doesn't appear that anything in the pond or lake killed the birds.
"Reports of one bird here or one over there is not cause for alarm," said Will High, a wildlife biologist for the Oregon Department of Fish and Wildlife. "But when you have 10 or 20 or 30 or 100 of them all of a sudden die in one day, well, that's just not normal."
Only cackling Canada geese, a small subspecies of the larger Canada goose, were affected, High said. Other varieties of birds, including ducks, gulls and 3 other species of geese were alive and well in both bodies of water.
The dead birds were found floating in the water. They appeared to swim with their heads under water, High said. Others were found on dry ground lying on their stomachs with wings flared out.
The goose carcasses have been sent to the National Wildlife Health Center in Madison, Wis., to be tested. The U.S. Fish and Wildlife Service, the federal agency that regulates migratory birds, also was notified.
5 years ago, large numbers of dead geese were discovered in Staats Lake. The Oregon Department of Fish and Wildlife studied the problem, but couldn't track down the cause. Tests showed that the birds weren't dying of infections or disease; the results were inconclusive about whether the birds died from something they ate.
Wildlife officials said that in recent weeks, large numbers of dead geese also have been found in Monmouth and McMinnville. They don't know if the incidents are related.
There are a number of possibilities here, including Avian cholera. It is unlikely that toxins are the cause, as the deaths seem to be dispersed over a relatively large area. We would appreciate an authoritative report. - Mod.TG
Patricia A. Doyle, PhD Please visit my "Emerging Diseases" message board at:
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