Category Archives: birds

Razorbills Take A Florida Vacation

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razorbill

Razorbills are typically birds of the northern Atlantic Ocean. Some winters they’ll show up in New Jersey or as far south as Virginia, giving bird-watchers a thrill. This black-and-white auk is not quite like anything else seen on the East Coast.

So imagine the surprise when razorbills started showing up in Florida. Not just one or two, but well over a hundred of them.

eBird had the story on their blog two weeks ago. The photo of razorbills flying over palm trees is worth a look.

The Florida media is catching on as well. Florida Today ran a story the day after Christmas. It says the birds are “penguin-like.” Well, the razorbills are black and white, and are bowling-pin shaped, but they fly. (And are from a different hemisphere, but that’s a mere detail.)

EBird says that the razorbills probably did not head south for warmth, mojitos or a vacation, but in search of food. That’s not good news.

Read the eBird blog, here.
Read the Florida Today story, here.

Photo: Razorbill, somewhere in the north Atlantic, courtesy of the US Fish and Wildlife Service.

NM Crane Mystery

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mystery crane NMIt’s not so much of a mystery, as a quirky little crane that has attracted media attention nationwide. Back in November, Bosque del Apache National Wildlife Refuge in New Mexico posted a photo on its Facebook page of a crane that was darker, thinner, smaller and had more compact feathers than the flock of sandhill cranes it was with.

The refuge is known for its sandhill cranes, so it made sense that this was simply a color morph, or a crane that had preened dark mud into its feathers. But the guessing game had begun, with the most outrageous guess supposing that this was a hybrid between a sandhill crane and a trumpeter, native to South America.

The photo of the bird that is getting the most exposure is by Clint Henson of the New Mexico Department of Game & Fish.

Read more about the guessing game in the San Francisco Chronicle, here.
The Bosque del Apache NWR Facebook page is worth a visit just for the many stunning photos, of cranes, other creatures and beautiful vistas.

Photo: Mystery crane and sandhill friends, courtesy of the Bosque del Apache National Wildlife Refuge.

Talking Turkey

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The New York State Department of Environmental Conservation’s Wildlife Health Unit is asking turkey hunters to be on the lookout for lymphoproliferative disease virus (LPDV). The virus, which causes lesions similar to the ones seen in the oh-so-common avian pox, was first confirmed in New York this spring.

Perhaps because of its resemblance to avian pox, LPDV has only been discovered in wild turkeys in the United States recently, when it had previously only been known in domestic turkeys in the United Kingdom and the Middle East, according to the quarterly newsletter from the Southeastern Cooperative Wildlife Disease Study. The newsletter also suggests that LPDV is more likely to cause lesions or nodules on a turkey’s legs or feet than the more common avian pox is.

Read the NYS DEC’s first request for more information on LPDV, here. (2nd item)
Read the department’s more recent request, here.
Read the Southern Cooperative Wildlife Disease Study Briefs, here. It includes some details about what LPDV looks like under a microscope.

There will be no State Wildlife Research News on Thursday or Friday of this week because of the holiday. Have a very happy Thanksgiving!

Photo: a healthy Rio Grande wild turkey, photographed  by Robert Burton, courtesy of US Fish and Wildlife and the Texas Parks and Wildlife Department. (For a photo of LPDV, see the NYS DEC write-up or the newsletter, but don’t say we didn’t warn you.)

Talking Turkey

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The New York State Department of Environmental Conservation’s Wildlife Health Unit is asking turkey hunters to be on the lookout for lymphoproliferative disease virus (LPDV). The virus, which causes lesions similar to the ones seen in the oh-so-common avian pox, was first confirmed in New York this spring.

Perhaps because of its resemblance to avian pox, LPDV has only been discovered in wild turkeys in the United States recently, when it had previously only been known in domestic turkeys in the United Kingdom and the Middle East, according to the quarterly newsletter from the Southeastern Cooperative Wildlife Disease Study. The newsletter also suggests that LPDV is more likely to cause lesions or nodules on a turkey’s legs or feet than the more common avian pox is.

Read the NYS DEC’s first request for more information on LPDV, here. (2nd item)
Read the department’s more recent request, here.
Read the Southern Cooperative Wildlife Disease Study Briefs, here. It includes some details about what LPDV looks like under a microscope.

There will be no State Wildlife Research News on Thursday or Friday of this week because of the holiday. Have a very happy Thanksgiving!

Photo: a healthy Rio Grande wild turkey, photographed  by Robert Burton, courtesy of US Fish and Wildlife and the Texas Parks and Wildlife Department. (For a photo of LPDV, see the NYS DEC write-up or the newsletter, but don’t say we didn’t warn you.)

Stickers Help Fund 2015 Heron Survey

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According to the Heron Observation Network of Maine (HERON) blog:

The great blue heron was designated as a Species of Special Concern in Maine in 2007 due to a decline in breeding pairs along the coast. Little was known about the inland breeding population before 2009 when the Maine Department of Inland Fisheries and Wildlife ramped up its monitoring efforts by creating the Heron Observation Network.

Through HERON, volunteers across the state monitor known great blue heron colonies during the breeding season, collecting information that helps state biologists understand the species’ population trend and prioritize future conservation efforts.

In addition to the data collected by volunteers, it is important to periodically do a statewide aerial survey to find new heron colonies that may have recently popped up.

To help fund the next aerial survey, scheduled for 2015, HERON is partnering with Burly Bird (a Maine-based conservation sticker company) to create a UV-coated vinyl sticker that shows a black and white silhouette of a great blue heron.

The stickers can be purchased from the Burly Bird website or through the Maine Department of Inland Fisheries and Wildlife’s online store.

The Maine Sun-Journal covered the story, here.

Kirtland’s Warbler Numbers Up in Michigan

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This year, researchers and volunteers in Michigan observed 2,063 singing Kirtland’s warbler males, up from 1,805 last year and the biggest single-year increase in the birds since 2007, the Michigan Department of Natural Resources reports.

These are the highest numbers ever for Kirtland’s warbler, a federally endangered bird, the release states. The warbler is endangered by habitat loss. It nests only in young jack pines, a habitat that only naturally occurs after periodic wild fires. Today the habitat is created through both prescribed burns and timber harvests with seeding. The birds range has expanded from Michigan’s lower peninsula, to its upper peninsula and into Wisconsin and Canada.

“We are witnessing a conservation success story,” said Michigan DNR endangered species coordinator Dan Kennedy in the release.

Read the Michigan DNR press release here.
Read more info on the species from the US Fish and Wildlife Service here.

In other songbird news:

While bark beetle outbreaks have been bad news for many throughout the West, they have been good news for mountain chickadees, at least at a local level for short periods around the time of the outbreak, says an article in the journal Ibis.

Because the birds are secondary cavity nesters, the study notes, the number of mountain chickadees in a location in a particular year ties most closely to the number of downy woodpeckers and red-breasted nuthatches the previous year.

You’ll need to pay or subscribe to read the whole paper. Find it here.

Photo: Kirtland’s warbler, courtesy Michigan Department of Natural Resources

American Midland Naturalist

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Here are some articles of interest in the current issue of American Midland Naturalist. (Fee or subscription required to read the full text.):

The Impact of Exotic Purple Loosestrife (Lythrum salicaria) on Wetland Bird Abundances. Some wetland bird species do well when loosestrife increases, this study found. It urges land managers to take care when removing loosestrife so as not to harm those species.

Use of Camera Traps to Examine the Mesopredator Release Hypothesis in a Fragmented Midwestern Landscape. Coyotes don’t like deep forests and red foxes don’t like urban landscapes, this study found. The presence of coyotes only scared off other mesopredators a little.

Lots more on invasive species. Including papers on garlic mustard and the types of plants that grow in contaminated roadside soil.

 

Vermont Eagle Population Soars

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Vermont has long lagged behind the other New England states in bald eagle populations. Even when bald eagle populations in neighboring states recovered to the point where they had dozens of nesting pairs, Vermont was still not home to eagles that were successfully raising young.

That changed in 2008, when a single pair fledged a single chick. In 2009, the state did its best to help a second breeding eagle pair that lost their nest when the tree it was in fell down. Now, just four years after that first eagle fledged, 23 eagles were fledged in 15 Vermont nests this year, reports the Vermont Department of Fish and Wildlife.

Read the Vermont Fish and Wildlife press release, here.
Read Vermont’s bald eagle recovery plan, here.

Avian Malaria in Alaska

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Human beings do not get avian malaria, which is a good thing for the human beings in Alaska. Avian malaria is, however, caused by a parasite that is closely related to the one that causes human malaria, and that might be a good thing, too. Of course, the news for birds is bad all around.

A study by San Francisco State University researchers, published in the journal PLoS ONE, collected blood samples from birds in Alaska over a latitudinal gradient in Alaska, from 61°N to 67°N, and found the avian malaria parasite as far north as 64°N.

This is a huge threat to the Arctic’s rich bird life, because the birds there have never been exposed to avian malaria and they may be highly susceptible to it, says San Francisco State University Associate Professor of Biology Ravinder Sehgal, one of the study’s co-authors.

The finding may supply medical researchers with a valuable model of human malaria and climate change. The spread of malaria (the human kind) is one of the most threatening aspects of climate change on human health.

For anyone charged with managing populations of wild birds — whether they are songbirds, water fowl or upland game birds, the presence of avian malaria at up to a latititude of 64°N is worth noting in hunting plans, endangered species recovery plans, and when investigating disease outbreaks in birds.

Read the PLoS ONE paper, here. (This is an open access journal.)
Read the SF State U press release, here.
Read a brief analysis of the findings in Climate Central, here.

Photo: SF State Associate Professor of Biology Ravinder Sehgal holds a Common Redpoll, one of several bird species in Alaska researchers discovered were infected with malaria. Credit: Ravinder Sehgal, SF State.

More Whooping Cranes in Louisiana

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Whooping cranes in LouisianaFourteen additional whooping cranes will be re-introduced to southwestern Louisiana in late November, according to an Associated Press article. These whooping cranes will join the survivors of two other groups of whooping cranes that had been reintroduced in February and December 2011.

According to the Louisiana Department of Wildlife and Fisheries, the last record of a whooping crane in Louisiana dates back to 1950. That bird was moved to Texas to join others of its kind. Fittingly, the first birds re-released in Louisiana were located where the last one had lived. Only three of the first group of 10 whooping cranes survived their first year, and 12 of the second group of 16 have survived until now.

Read the AP story in the Houston Chronicle, here.
Read information from the Louisiana Department of Wildlife and Fisheries, here.

Photo: Whooping cranes are habituated in Louisiana in 2011 before release. Courtesy Louisiana Department of Wildlife and Fisheries.