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Conservation Group Seeks Protection Of Rare Western Sparrow

By on December 22, 2016 in Conservation
Conservation Group Seeks Protection Of Rare Western Sparrow

Vesper Sparrow with Nestlings by Suzanne Beauchesne

Calls for Oregon Vesper Sparrow to be Listed under the Endangered Species Act

(Washington, D.C., Dec. 21, 2016) American Bird Conservancy has petitioned the U.S. Fish & Wildlife Service to list the Oregon Vesper Sparrow as a threatened or endangered species under the Endangered Species Act (ESA). In a letter sent to Sally Jewell, Secretary of the Interior, ABC describes this subspecies of the Vesper Sparrow as highly imperiled and threatened with extinction throughout its range.

The petition makes the case that the species warrants listing because of significant population declines and ongoing habitat loss and degradation, among other threats, and because it lacks adequate protection under existing regulatory mechanisms.

Without ESA listing, the sparrows’ future looks grim. The current estimated population of the Oregon Vesper Sparrow is fewer than 3,000 birds, and Breeding Bird Survey data indicates a statistically significant population decline of more than five percent every year over the last 45 years.

This migratory species has a restricted breeding range that historically included southwestern British Columbia, western Washington and Oregon, and northwestern California. Now, breeding populations have disappeared from British Columbia and California, along with numerous local breeding populations throughout the range.

The species overwinters in California west of the Sierra Nevada Mountains and south of San Francisco Bay, and historically it ranged into northwestern Baja California, Mexico. But wintering populations in Baja and southern parts of California have now disappeared.

“We are deeply concerned about the future of this bird,” said Bob Altman, ABC’s Pacific Northwest Conservation Officer. “With so few birds remaining, many in small and isolated populations, the Oregon Vesper Sparrow needs the immediate protection and conservation focus made possible through ESA listing.”

Several primary threats are driving the sparrow’s decline:

  1. The continuing loss and degradation of its grassland and savannah habitats because of development, conversion of those habitats to intensive agriculture, and the encroachment of invasive shrubs, trees, and exotic grasses;
  2. Harmful or poorly timed land-use activities such as mowing, overgrazing, military training, and recreational use; and
  3. The vulnerability of small, isolated breeding groups of birds.

“Every year, more populations are being lost, and we are not seeing the establishment of new populations where habitat restoration has occurred,” Altman said.

Existing regulatory mechanisms do not provide the protection needed to prevent the Oregon Vesper Sparrow from continuing on its trajectory toward extinction. There are no Federal or State programs dedicated to its conservation, and only about 20 percent of the birds’ range-wide population occurs on public lands. Without ESA listing, this vulnerable species will continue to decline and is likely to disappear forever.

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American Bird Conservancy is the Western Hemisphere’s bird conservation specialist—the only organization with a single and steadfast commitment to achieving conservation results for native birds and their habitats throughout the Americas. With a focus on efficiency and working in partnership, we take on the toughest problems facing birds today, innovating and building on sound science to halt extinctions, protect habitats, eliminate threats, and build capacity for bird conservation.

Contact: Bob Altman, ABC’s Pacific Northwest Conservation Officer, 541-760-9520

Something for the Canaries to Sing About

By on October 29, 2016 in BirdWords, Conservation
Rufus Hummingbird at Sunflower

As this hummingbird refuels on sunflower nectar, her heart beats over 615 times a minute, and she take 110 breaths

Fortunately for old miners, clean air may be even more immediately important to our feathered friends than it is to us.

Like us, birds are warm-blooded. That pretty much guarantees a high rate of metabolism, the routine internal processing done by a healthy body. Cold-blooded bodies generally work slowly–the heart rate of a resting one-pound snake is about 16 beats/minute—and these animals usually become inactive in cold seasons. But warm-blooded creatures burn their food to keep active even in cold weather. Their bodies must work faster. The heart rate of a one-pound crow is 345 beats/minute, five times ours and over twenty times as much as the snake’s!

Heart beats, of course, are pushing blood to every cell in the body, carrying food and, more urgently, the oxygen that can unlock food energy and keep each cell functioning. So along with their fast heartbeats, birds breathe rapidly. That puts a premium on clean air.

As birds process the air they breathe, any toxins present can take a toll. As I drive to work I create a whole cloud of trouble. Over time, ozone and nitrogen oxides can rupture blood vessels in the lungs. Polycyclic aromatic hydrocarbons can cause DNA mutations, decrease body weight, and probably reduce egg-laying and hatching. Inhaled particulates damage lung tissue. Together, pollutants reduce red blood cells, effectively cutting the birds’ ability to process food. Further, extra carbon dioxide in the air creates climate change, altering habitats the birds need to live.

Some 20-50% of these pollutants are from vehicle emissions. Hence, the problem with me driving to work.

So what’s a person in intelligent consideration to do? One solution would be to quit work. Sometimes tempting, but fortunately there are less drastic fixes.

Not long ago it seemed reasonable to think that buying a cleaner emission car was reserved to Hollywood glitterati and Silicon Valley CEO’s. But it’s not that way now. An MIT study of ten-year costs, including purchase, fuel, and maintenance, of America’s 125 most popular vehicles showed that low-emission vehicles are often less expensive than their guzzling counterparts. Clustered at the least-expensive/least-polluting corner of the data are electric, battery-powered vehicles such as the Chevrolet Spark, Nissan Leaf, Ford Focus, Smart Fortwo, and Fiat 500E. Many of these vehicles have internal combustion versions, but with reduced fuel consumption and federal and state refunds the electric versions cost comparably or less.

And their emissions are cleaner—better already than 2030 Paris Accord goals.

Now a small car that needs recharging rather than refueling might not meet everybody’s needs. But it will meet some needs, and apparently can do so without requiring a second mortgage. The increasing options in affordable, cleaner cars may give the canaries something to sing about!

Whole Earth and Watershed Festival

By on March 9, 2014 in

The festival is a community-wide event bringing together a variety of activities all celebrating social, economic, and environmental solutions for ourselves ad our planet while enhancing the health and livability of our region. We have found our booth to be very popular with attendees and are looking for volunteers to staff it. If interested call Bea Currie at 243-3955.