January 21, 2011

About those birds

Remember the big bird die-offs in several states last month? From the Christian Science Monitor:
Bye Bye Blackbird: USDA acknowledges a hand in one mass bird death
It's not the "aflockalyptic" fallout from a secret US weapon lab as some have theorized. But the government acknowledged Thursday that it had a hand in one of a string of mysterious mass bird deaths that have spooked residents in Arkansas, Louisiana, Alabama, South Dakota, and Kentucky in the last month.

The United States Department of Agriculture (USDA) took responsibility for hundreds of dead starlings that were found on the ground and frozen in trees in a Yankton, S.D., park on Monday.

The USDA's Wildlife Services Program, which contracts with farmers for bird control, said it used an avicide poison called DRC-1339 to cull a roost of 5,000 birds that were defecating on a farmer's cattle feed across the state line in Nebraska. But officials said the agency had nothing to do with large and dense recent bird kills in Arkansas and Louisiana.
And then the story starts to get strange:
Nevertheless, the USDA's role in the South Dakota bird deaths puts a focus on a little-known government bird-control program that began in the 1960s under the name of Bye Bye Blackbird, which eventually became part of the USDA and was housed in the late '60s at a NASA facility. In 2009, USDA agents euthanized more than 4 million red-winged blackbirds, starlings, cowbirds, and grackles, primarily using pesticides that the government says are not harmful to pets or humans.
So we have this program at the USDA that has been lurching along under the wire since the 1960's. They own up to one bird kill but deny any of the others. Don't they have any grasp of population dynamics? If you remove a species from a niche, the niche will refill faster than before the removal as you have more food and less competition. A few generations and you are right back to where you started. Basic biology... If they are concerned with the hordes of birds eating the 200 pounds/year of cattle feed (as mentioned in the article), they should just keep some hawks around. Cool birds and they will keep the rodent population down too. Posted by DaveH at January 21, 2011 8:08 PM
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