Posts tagged “beak

Raven’s nest in moose antlers

A few years ago I went with my husband up the Dalton Highway to Prudhoe Bay.  We stopped a few different places including a storage yard and former state camp called Happy Valley where I found one of the most wonderful things I’ve ever happened upon… a raven’s nest in a mounted rack of moose antlers with two babies in it!

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Wild Turkeys in Hawaii

Wild urkey on the Big Island of Hawaii

There are tons of wild turkeys on the Big Island of Hawaii!  They roam the golf courses and lava rock fields searching for insects, lizards, seeds, berries and anything else that’s edible and relatively small.   It’s a lovely thing to see.

The Wild Turkey evolved in America and was domesticated by Native Americans.  In the early 1500s turkeys domesticated by the Aztecs were taken to Europe and interestingly enough, their descendants were brought back to America by the pilgrims who soon found out their indigenous neighbors were raising them too.

They soon spread to China and in 1788 they were introduced from there to the Hawaiian islands. Over the years, more have been released, whether purposely or not, by ranches and farms and perhaps by people who wanted to hunt them.  Currently you can hunt them on the island along with pheasant, doves, francolin, quail, as well as introduced mammals such as goats, sheep and boar.

Turkeys especially prosper on the Big Island because of it’s dry grassy sloping landscapes, and as you can see, they seem right at home.


Black-Capped Chickadee Beak Deformity

Chickadee with beak deformityI made this little animation to show how this poor chickadee was being bothered by its beak deformity.  Every so often it would rub its beak against the edge of the bird feeder like this.  It appeared relatively healthy so it must have been able to eat satisfactorily, but apparently this deformity causes it to be obsessive about trying to scrape off the excess beak.


Image

Raven, in the winter sun

Raven in Tree


A Snow Bunting at Pictured Rocks

I saw a snow bunting once before, in Prudhoe Bay, Alaska.  In its summer garb.  But this one I spied on a gravel road in Pictured Rocks National Lakeshore in Michigan in its winter plumage. My husband and I were in the middle of a 6 week long road trip that started and ended at our home in Fairbanks, Alaska, but that took us through 4 Canadian provinces and at least 14 states.  And of all the amazing times we had this snow bunting was actually pretty special because it was one of the few close encounters with birds that I had over the whole 6 weeks.

Michigan’s scenery, little did I know, is astoundingly beautiful!  I had no idea there were sand dunes in the Midwest!  Sleeping Bear Dunes National Lakeshore (on left) is a must-see part of North America.

As is Pictured Rocks National Lakeshore on thePictured Rocks National Lakeshore - Michigan Upper Peninsula of Michigan.  You can see red-orange sandstone that is 500 million years old in the photo on the right.  This cliff has been beautifully sculpted by the waters of Lake Superior.  The interesting part is that even though the rock that makes up the landform is hundreds of millions of years old, the cliff itself that you see jutting out into the water is only a few thousands of years old.  No landform around this area could be older than 12,000 years old because that’s when glaciers retreated at the end of the last ice age.  But this land is rising.  It has risen far enough up since then, and been sculpted by the forces of erosion, to give us a spectacular view of rock formations that used to be buried.

So as my husband and I are visiting this most scenic of places, this snow bunting is pick pick picking at bits of something along a gravel road, letting me get closer and closer with my camera.

He must have just arrived from more northerly climes, smartly getting busy eating as many seeds and insects that he can before the coming winter.  Snow buntings spend the summer in Alaska and northern Canada and before winter fly to the Midwest of America, southern Canada, and the coastlines of Alaska.  Males have darker heads in the winter and more black on their wings, like this little guy.

I know all this about snow buntings now because I have my handy birding books around me.  But when I was taking the photos I thought maybe it was a sparrow of some kind.  To my delight, when I finally got home and looked it up I found out it was a snow bunting which is not a sparrow.  I would have never recognized it because the one I saw in Prudhoe Bay was in it’s June breeding plumage which is mostly white.  Moral of the story:  take at least one birding book with you on your road trip!

Pictured Rocks National Lakeshore

Pictured Rocks National Lakeshore

Pictured Rocks National Lakeshore

Pictured Rocks National Lakeshore


Reflections on the Sandhill Crane

The Sandhill Crane has a lot of personality.  From their rattling call to their long legs and red banded eyes, you can’t mistake one.  Especially given it’s statuesque 4 foot height… good thing they don’t want to get too close to us because they would probably be quite intimidating!

The one on the left popped up at a pond my husband and I like to visit near our house.  In May, full of mosquitoes, but an unexpected sweet birding spot.  This bird wanted us to remove ourselves quickly.  I presume it was spreading its wings in an attempt to make itself look bigger and more menacing.  It was having a private moment, who are we to interrupt!?  So we snapped a couple shots and skedaddled.  (Although I don’t know that this would be a safe place to make a nest because of neighborhood dogs or other wandering animals like foxes.)

As you can see, they have a lot of color variation, in fact their rust and gray blend is quite striking, having an almost metallic glint to it.

The photos on the right are from Creamer’s Field, an awesome place in Fairbanks to see migrating cranes, geese, and ducks.  (I’ll do a post on it in the future.)  The pair on the right must be a parent and offspring, since the one hasn’t attained adult coloring of gray and red face.  If you want to see a short video of this pair click here, but if you do, keep an eye peeled for the Canada Geese in the background waddling through the grass.

The splendid artwork on the left was found driving through North Dakota or thereabouts, and if I remember right they were celebrating a crane festival.  Apparently, I’m not the only one who finds Sandhill Cranes to be extraordinary creatures!       —————————

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Black-Capped Chickadee Beak Deformity

First seen in the winter of 1991-92, Black-Capped Chickadee beak deformities are now quite common, according to the Alaska Science Center.  To date, there have been over 2100 reports of chickadee beak deformities in Alaska, and only 31 outside of Alaska.  In the photo above, you can see that the chickadee’s beak is at least twice as long as it should be, and the bottom part is crossed and curved up.

The Northwestern Crow suffers from this malady as well, with an astounding 17% of adult birds in Alaska exhibiting some level of beak deformity (as opposed to 6-10% of adult Black-Capped Chickadees).

Other birds with reported beak deformities are the Black-Billed Magpie, Red-Breasted Nuthatch, and Stellar’s Jay – although none of these reports come anywhere close to the high number of sightings of the Black-Capped Chickadee.  Other species of chickadee have been seen with the problem too but they number under 10 total.  Whatever the source of the problem, Black-Caps are especially vulnerable to it.

This map (from alaska.usgs.gov) shows locations of Black-Capped Chickadee beak deformity sightings.  At first they were centered around Bristol Bay and the Mat-Su Valley but they soon spread to Fairbanks (where I live) and elsewhere.  There are plenty of sightings in remote locations so the problem does not exist only in populated areas.

The poor creatures with deformed beaks often have a very hard time eating – it’s actually kind of amazing that they do get by at all.  The one on the right kept rubbing the elongated portion of its beak on the wood of our feeder, as if attempting to rub it off.  No doubt feeders and even garbage help to keep them alive but mortality is undoubtedly higher among them.  Normal preening is greatly disrupted.  And though many of them do find a mate and breed, fewer eggs hatch to a pair in which the female is deformed and fewer young survive when the male is deformed.

Possible causes are contaminants, nutritional deficiencies, disease, genetic abnormalities and parasites.  Read more about those at http://alaska.usgs.gov/science/biology/landbirds/beak_deformity/causes.html

On the left is an example of a normal beak.