Monday, June 18, 2012

Feathers for the Swallows


dead swallow and goose feather
Violet-green swallow on a big feather that he may have carried up to feather his nest if he hadn't crashed into a window.

A huge bag of goose feathers stands by my front door for the swallows.  They use them to line their nests.  When the swallows arrive in spring migration, they begin to build the nests and are on the lookout for materials.  In May and June, if it isn’t raining, I grab a handful of goose feathers from the bag every time I go outside.  Feathers scattered on the ground attracts barn, violet green, and tree swallows.  But they prefer to catch floating airborne feathers rather than swooping down face-first to grab them off the earth.  So I blow feathers from a ten-foot plastic pipe into the air for the birds to snap up.  The birds soon learn what I am up to when I pick up the pipe: they fly around and around, waiting for a feather to come out.  I notice that from the beginning to the end of the season, their feather catching skills improve.  They learn to grab them by the fluff at the front of the shaft and fly with them curved underneath their bodies.  So I give them bigger and bigger feathers, even larger than the ridiculously large size of the feather pictured under this poor bird that crashed into a friend’s window.    

Monday, June 4, 2012

Why Feathers Are Curved Part 2


Flight.  

argus pheasant feathers
Great Argus Pheasant wing tip feathers
A mix of side-to-side and front to back curve feather curve lets each kind of bird fly in their own special way. 

How a feather shaft is shaped depends on what type of flight is important:
 
·         quick but short bursts of flight like seen in pheasants and a lot of songbirds. The first primary flight feathers of these birds are super-curved from side to side but not so much front to back.  This makes for a quick lift-off.  Think of a forest grouse that explodes off the ground, usually scaring the bejeezus out of anyone close by. 
·         soaring flight like vultures and eagles. The main flight feathers have some front to back curve or camber.  My sister showed me a huge Wood Stork primary feather from Tanzania that had so much front to back arc camber that five of them would make a full circle. 
·         Fast flyers like swallows, ducks, and falcons or gliders like seagulls.  Their feathers usually have less curve both side to side and front to back. 

Other aspects of wing flight feathers like their shapes let them do what they do in flight.  Which is a good subject for an upcoming series of blog articles: shapes of feathers.
  
There is way more to flight feather curves than what I have outlined here.  A good source to start with is the 2010 book, Bird Feathers: AGuide to North American Species by David Scott. 

Sunday, May 20, 2012

Why Feathers are Curved. Part one.


floating goose body feather

Why the shaft of feathers are curved. Part one. 

Most feathers have some curve to their shafts.  One of the reasons is for warmth.  A front to back bend on a body feather serves to control a bird's temperature. 

Feather curves are the main reason I use shadowboxes rather than trying to make the feathers lie flat.  I want to honor their natural shapes.

The most consistently and intensely curved feathers I know of are the body feathers from waterfowl.  Many of the body feathers on a swan are so inwardly curved that it takes only two to make a complete circle.  On most birds, the curve allows a larger air space between the body and the elements.  It’s like the wider the insulation is in your house or the thicker the layers of your clothing is, the warmer you are.  A neat thing about birds though is they can control how thick the air layer is.  Through muscle-feather control they can flatten the flexible shafts, pushing them next to their body.  Or they can fluff themselves by letting their feathers naturally curl to their max like you see songbirds do on a cold winter day.  I wish I could do that with my clothes.

Sunday, May 6, 2012

Swans and their Feathers




Mute Swan Feather Assemblage Cutouts Art
Swan Feather cutouts  --mute swan
Someone actually counted every feather on a swan and came to the conclusion that they have more feathers than any other bird on earth.  I’m not sure that is true although it is the generally accepted or at least most widely quoted figure:  24,000.  Take the numerous outer feathers away on a bird like this and you have essentially a  long underwear-like layer of soft down feathers.

Everyone knows a swan is all white.  The all-white swan is beautiful and often triggers notions of the meaning of white, like purity and angels.  But white feathers are weaker and less durable than black ones.  Why? It has to do with the protein melanin, the same stuff that makes light-skinned people tan and gives some people freckles.  Melanin in feathers strengthens them against wear and also makes them black or reddish brown.  Many large birds need their primary flight feathers to last a long time.  A lot of mostly-white birds have black feathers where they need the strength and durability—in the flight feathers. White pelicans, snow geese,, white stork, wood stork, and many seagulls are mostly white except for their primary flight feathers.   

So then why is the Black Swan from Australia is all black except the tips of the wings white?  I don’t know for sure but assume that it’s because swans just keep their wings folded in when they feed, so except for flying, they don’t have to worry as much as other birds about wear and tear on their wing feathers.

I have been working a little with Martha Jordan of the Trumpeter Swan Society whose work includes rehabilitating, protecting, and reintroducing Tundra Swans.  


Sunday, April 22, 2012


Chinese Ring-Neck, Mikado, Copper, Elliots, Reeves

55 Kinds of Pheasants and their feathers

The world has fifty five species of pheasants, almost all from Asia.  One of the great things about these large birds is that the male of each species grows at least four different interesting types of feathers.   And half of the males and females grow totally differently colored and patterned feathers.  Let me see, that’s over 300 interesting different kinds of feathers to work with! 

Here are two more reasons why feathers from these birds are great.  First, the males use feather size, pattern, form, shape, and color to attract their mates.  Second, pheasants are large, so their feathers are big and showy.  Here are a few:

·         Long-tail pheasants have long tails – like the ringneck pheasants people hunt and also pure black and white stripes tails from Mikados that live only in Taiwan, and a Copper that live only in Japan.
·         Peacock pheasants are perhaps an ancestor of the peacock but a lot smaller and with  bright round eyes on their tails
·         Tragopans have little round spots all over, some are a bright red with round white spots and one is black with round white spots.
·         Junglefowl are the ancestors of chickens
·         Three species of peacocks, the Java Green, the India, and the Congo which looks a lot different and is the only pheasant originating outside Asia.  It is from Africa.

I had a male Impeyan Pheasant, a stocky species that lives high in the Himalayas.  It escaped my cage one day and flew into a neighbor’s grass hay field 1/3 mile away.  A normally colored bird would disappear, blending in with the deep grass and I never would have found it.  But the Impeyan’s brilliant metallic feathers showed like a beacon.  I imagine that this bird’s metallic and reflective feathers led to the demise of many of its kind.  So its advantages of attracting mates must outweigh this major disadvantage. 

Monday, April 9, 2012

The Most Beautiful Bird on Earth



Number patterns 0-9 found on Argus Pheasant feathers
It’s not the color; it’s the patterns on the feathers that make this peacock-sized bird so awesome.   How can a bird that grows only black, white and brown feathers be so attractive?  It’s because the patterns vary so much.  The bird sports eyes on some of its wing feathers that look exactly like the eye spots on some moths.  And there’s not only one or two eyes on each feather but 10 or more!  At 30 inches long, these impress me as the most wondrous feathers on earth.  The female wing feathers show reticulated markings like Arabic writing.  The male’s five-foot black and white spotted tail feathers, of which the bird grows only two, twist curiously into spirals at the tips.  Even the feathers under the tail differ in unique patterns and sizes.  The longest 13-inch top ones grow downy filaments half-way up the shaft and then turn into yellow-brown top feather with large black spots.  Then under the tail and with the same markings as the tail, are feathers that look like Ping-Pong paddles cut in half but grow up to 18 inches long. 

When I was in my early 20s, I worked on a family friend’s grape vineyard during Spring Breaks.  They kept a few large  Argus wing feathers displayed in a jar on their counter.  I think I can trace an increase in my obsession with feathers back to those.  Now, a good portion of my work with feathers is with the Great Argus Pheasant.  I’ve made an alphabet just from the patterns in the different feathers of the Argus pheasant.  Actually, there were so many patterns I discovered, that I had to decide between at least three choices of each letter for which one to include in the alphabet poster.  Here is a two-minute Argus Pheasant video (on ARKive) so you can get to know the bird

OK, I admit, peacocks are equally beautiful in a different way.  But they much more common and therefore can sometimes seem a bit, well, too common for use in artwork, though I do and I love them. 

Sunday, March 25, 2012

Keeping Feathers and the Law

It surprises most people when they find out that it is illegal to pick up or have even a Jay feather. Why? The main law in the USA is the Migratory Bird Act.  The Act  doesn’t make a difference between picking up a molted feather and shooting a bird for its feathers. The Act is a broad brush tool , easier to enforce when someone is found with a feather rather than having to prove they killed a bird. It is not easy or possible to tell the difference between a feather from a road-killed bird from one that was shot or trapped.  However, a molted feather should now days be easy to distinguish from a plucked feather by looking at it under a microscope.   I think it would be nice if there was an exception for molted feathers from songbirds – but not to sell them. 

So, having any feather from almost every bird in North America is illegal.  Crows, pigeons, starlings and game birds being the exceptions.   That's why I started out my feather obsession just photographing feathers.  That way I didn’t need to have them.  Since now I work more directly with feathers in shadowboxes, I just make sure that the feathers I get are either not from birds native to the USA or are from the few kinds in my country that I can use.  Fortunately for me, some of the most beautifully feathered birds are not migratory and are kept in private aviaries and zoos and these birds naturally shed their feathers each year.   I even raise a couple pairs of my own: Impeyan Pheasants, native to Nepal and Black Francolins, native to Pakistan.