Bats at the Mine Hill Reserve

Circumstances have been keeping Pamelia, Rocky and me away from home this winter, but not from exploring—in this case the Mine Hill Reserve in Roxbury, Connecticut. The abandoned iron-mine shafts there have become one of the state's largest bat hibernation sites.

This mine shaft is caged in to keep people out but allow bats to come and go freely.

Though white-nose syndrome (a disease caused by a deadly fungus) has devasted bat populations in 25 states and five Canadian provinces since it first appeared in New York State in February 2006, Mine Hill's tunnels still host thousands of little brown, big brown, northern long-eared and pipistrelle bats (see photos below) in a dark, moist, 50- to 55-degree environment from fall to spring. Mine Hill is what biologists call a hibernaculum, or a place to hibernate. Roxbury has protected it through its highly successful land trust. 

Little brown bats belong to a genus called Myotis, meaning "mouse-eared bat." They're sometimes known as little brown myotises. Their population has been hit hard from white-nose syndrome.

Big brown bats are one of the bat species that catch insects with their wing membranes and then shovel the insects into their mouths.

Northern long-eared bats are now listed as a threatened species because of the impact of white-nose syndrome.

The pipipstrelle is a small bat that can eat as many as 3,000 insects in a night.

Scientists have made progress in finding a way to combat white-nose syndrome, but bat numbers continue to shrink. Too many humans still think of bats as scary rather than magnificent, as threats rather than threatened. Bats control insect populations naturally, unlike insecticides, and they're mammals, like us. In fact, they've been around in their present form longer than we have; the oldest bat fossils date back more than 50 million years.   

The history of Mine Hill is interesting too. In Mine Hill's heyday, in the mid-19th century, iron was extracted from the mineral siderite (the rock on the far left in Pamelia's hand in the photo below) by immigrant workers from Europe. The mine was later a source of granite, some of which was used on the 59th St. Bridge and Grand Central in New York.

These days Mine Hill's trails, groves of mountain laurel and impressive rock formations attract hikers, nature lovers and history buffs. As you can learn from its extremely well-done informational signage, Mine Hill is fascinating place for humans as well as bats.

The siderite (far left) was a source of Mine Hill's iron. 

Rocky and I checked out some of the rock formations.

Pamelia and I enjoyed Mine Hill's longest hiking trail.

Rocky did too.


Have you visited an interesting nature reserve or park recently? Or—perhaps more important—seen any bats in the last year?

From Our Mailbag...

Following our latest Facebook posts on bobcats, off-course migrant birds showing up far outside their normal geographic range (including a black-throated sparrow photographed far up the coast of Maine), long-tailed-ducks, the Malheur National Wildlife Refuge standoff in Oregon and other subjects, our virtual mailbag overflowed this week with more than 1,000 of your comments and contributions (thank you—keep them coming!). Many of you sent photos of bobcats and birds you've seen, and artist Laurie Rothberg shared a watercolor she painted based on our northern-harrier photo from the Malheur refuge. Among the bird sightings you reported were a horned lark and a mountain chickadee, which a lot of people have never seen, so I'm putting up shots of them below. Enjoy! 

(The horned lark was photographed in South Dakota by Kathy Zimmerman; the mountain chickadee shot was taken in New Mexico by an unnamed photographer and shared on Wikipedia.) 


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Here are Laurie Rothberg's northern harrier painting...

...and the photo that inspired it. We took this picture at the visitors' center at the Malheur National Wildlife Refuge.

Kathy Zimmerman's horned lark photo, taken in South Dakota.

A mountain chickadee photographed in New Mexico.

Malheur Wildlife Refuge, the Militia and the Audubon Society

Today (Jan. 5) is the 111th birthday of the National Audubon Society. It is a day to celebrate birds and efforts to protect them and their habitats in the face of continuing threats, most recently from anti-government militia members who would like to see at least one national wildlife refuge dismantled.

A greater white-fronted goose specimen Pamelia photographed at the Malheur National Wildlife Refuge nature museum in southeastern Oregon.

Pamelia and I photographed the four species shown here—a greater white-fronted goose, a northern harrier, a western tanager and a horned grebe—and many others at the Malheur National Wildlife Refuge in Oregon in 2010. At the time we were doing reporting for a magazine story on the Pacific Flyway bird migration. In the course of writing that piece we saw that the network of national wildlife refuges in the western U.S. is essential to the annual migration of tens of millions of avian species, especially water birds.

The Malheur refuge was established by Teddy Roosevelt in 1908 to help protect species such as great egrets, which, along with many other large birds, had nearly been wiped out over the previous two decades to provide feathers for women's hats. That same slaughter had prompted the founding in 1896 of the first Audubon chapter, in Massachusetts, and had led to the 1905 murder by egret poachers in the Everglades of Guy Bradley (see photo below), a famously courageous game warden linked to the Florida Audubon chapter. 

Feathered hats were so fashionable at the turn of the 20th century that millions of birds were killed to provide plumage for them.

These are great egrets, a species brought to the verge of extinction by the craze for those fashionable hats.

A northern harrier at the Malheur refuge museum.

The refuge has a driving route for bird-watching visitors.

A western tanager specimen, again from the Malheur refuge display.

A horned grebe.

At the Malheur refuge we saw Canada geese and a variety of other waterfowl, wading birds and raptors.

The Malheur refuge, a key stop for migrating Pacific Flyway birds, was already under assault from carp—introduced into Malheur Lake in the 1920s as a food source for local residents, but now an environmental nightmare that has eaten the insects, plants and fish eggs needed by birds—even before this week's news that it has been taken over by armed militia. One militia member, Ammon Bundy, complained to CNN that the refuge sat on land that could have been used for ranches and mining. "This refuge—it has been destructive to the people of the county and the people of the area," said Bundy.

That's not exactly a happy birthday message for the Audubon Society, but it's a reminder why organizations such as Audubon—and the voices of everyone willing to stand up for wildlife and the habitat it needs to survive, including the Malheur National Wildlife Refuge—are as important as ever. —Craig Neff and Pamelia Markwood

Guy Bradley, now an icon in conservation, was just 35 when an egret poacher in Florida shot and killed him.

Our Visit to the Malheur National Wildlife Refuge, Site of the Militia Takeover

When Pamelia and I visited the remote Malheur National Wildlife Refuge in southeastern Oregon in 2010 (while doing reporting for a magazine story on the Pacific Flyway bird migration), we saw raptors, waterfowl, shorebirds, a coyote and a small but terrific one-room, unstaffed nature museum filled with bird specimens and eggs—a gem in the middle of nowhere. Thus we were startled by the news that armed militia members have taken over a building at the refuge in an anti-government protest involving ranchers. Here are several images from our visit, including the coyote, a barn owl, a black-bellied plover, a mountain bluebird, a greater yellowlegs, a sharp-shinned hawk and long-billed curlew eggs. The refuge's history is fascinating; more on that soon. —Craig Neff and Pamelia Markwood

Welcome to Malheur National Wildlife Refuge in southeastern Oregon. It's a key stop for birds on the Pacific Flyway migration route.

The coyote raced across a field, stopped, turned to look back at us, then ran off.

A barn owl specimen from the Malheur refuge's wildlife display.

A main building at the Malheur National Wildlife Refuge. I'm not sure if this is the one taken over by the militia.

I walked around the remote refuge with Pamelia under eastern Oregon's big sky.

A black-bellied plover specimen from the bird display.

A mountain bluebird.

A greater yellowlegs.

Malheur's small but wonderful nature center.

A sharp-shinned hawk.

The refuge has drawers full of egg specimens, such as these from a long-billed curlew.