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It has been a long time since I put up a turkey post. In a way this is appropriate, since people other than hunters and farmers usually only think about the majestic fowl around holiday time when the sharp axe comes out (or–more likely—when one wanders over to Krogers to check out the price of Butterballs). Meanwhile live turkeys have been slogging away through the long winter. For farm turkeys this has meant dull days perched in dark coops huddled together for warmth while living on daily water and grain hand-outs from the farmer. For wild turkeys the winter is more like a Russian war novel. The wind, ice, and snow are enlivened by desperate hunger and by fear of omnipresent predators stalking through the bare trees of the frozen forests. The cold nights are filled with the howl of the wind and the coyotes while the days are filled with desperately scraping the dead ground for remnants of food.
But that was winter–spring is here, and with it, mating season. This time of year highlights one of the signature features of turkeys wild and domestic—gobbling. In fact today’s post is really an auditory one. Here is a movie of a Tom turkey gobbling!
The gobble is rightfully the most famous turkey vocalization. It is similar in nature to the humpback’s song or the deafening yodel of the siamang: a magnificent declaration of self which proclaims dominance and health to females. This ululating yodel alerts all nearby hens to the fact that an alpha male tom turkey is in the area and is at the top of his game (it also lets rival males know where to go for a fight and hunters where to go for a meal, so it is a true and heartfelt declaration of bravery and lust on the part of the issuer).
Gobbles are hardly the only turkey vocalizations. Turkeys both wild and domestic are extremely garrulous characters and produce many different calls for a variety of reasons. Here is a list of the more common turkey vocabulary from the national Wild Turkey Federation. By using a variety of tools and the full range of the human voice a tiny number of truly expert hunters can produce most of these noises, however turkeys are clever enough that they don’t usually fall for such guile.
When I was a child, my family went to the invertebrate house in Washington, DC. Upon entering the building, there was a very beautiful aquarium which contained the most alien creature I have ever encountered. It was a beautiful glistening red…and then it instantly changed color to bright white with pale dun spots. Next the strange being sank through the water column and changed color and texture. Its smooth skin knotted up into ropey bumps. The speckled white tuned to wavy deep brown lines. Intelligent eyes with W-shaped pupils regarded me from what suddenly seemed to be a hunk of rock. I had encountered my first live cuttlefish. In fact there were two in the tank, as I discovered when a patch of unremarkable sand changed shape and color and jetted to the surface while flashing rainbow colors. They were worked up because they were about to be fed and, when eating their suppers, the cuttlefish put on a particularly good show. They changed color like digital screens and waved their eight arms about and then ZAP! elongated feeding tentacles shot out from under their mantles to grab the anchovies from across the length of the tank. Then they rocketed around with uncanny torpedo speed.
Cuttlefish are cephalopods like octopuses, argonauts, squid, and nautiluses. Across the long ages they have descended from those magnificent nautiloids and othocones who ruled the world during the Ordovician era. Cuttlefish are one of the most intelligent invertebrates: their brains make up a substantial portion of their body mass, and their behavior when hunting, hiding, and courting is complex. The unusually shaped eyes of the cuttlefish are among the finest in the animal kingdom. Their blood makes use of copper rather than iron to fix oxygen so it runs green. All cuttlefish possess poisons in their saliva. In fact the Pfeffer’s Flamboyant Cuttlefish is as toxic as the Blue-ringed octopus.
But why am I talking about these extraordinary mollusks during a week devoted to blogging about color? First of all cuttlefish are “the chameleons of the sea.” As I observed at the zoo, they can change color with a speed and facility unrivaled by any other creature. They use their mastery of color to camouflage themselves, to hunt, and to communicate with each other. The animal’s existence literally hinges around the color-changing chromatophores in their skin. But the association of cuttlefish and color doesn’t stop there. Cuttlefish produce a dense ink which they squirt into the ocean to disguise their movements when frightened. This sepia ink, collected from the ink-sacks of common cuttlefish destined for the table, was prized for writing and for drawing during the classical era. Many of the great histories and literary masterpieces of Greco-Roman thought were first penned in sepia ink. Although other inks took the place of sepia for writing, it maintained its place in the artist’s studio up until the late nineteenth century when it was supplanted by synthetic pigments.
This means that many of the masterpieces of draftsmanship were also created with sepia ink. A particularly effective and pleasing style was to sketch something in watered down sepia washes and finish the details with black india ink. Like chartreuse, magenta, and vermilion, the name sepia itself has become synonymous with a color. This reddish brown is famous in old masters pen-and-ink drawings, antique photos, and memory-hazed movie flashbacks. Not only has this ink provided some of the most beautiful drawings in history, recent studies have shown that cephalopod ink is toxic to certain cells—particularly tumor cells, so we may not have written the last concerning sepia ink.
Continuing on with our festival of colors, we come to another brilliant hue–magenta. Although I think this is one of the loveliest and most spectacular of all colors, it also has a pedestrian office existence at odds with its singular beauty (a situation which is familiar to many of us). The tone is known to administrative drudges everywhere as one of the three ink cartridges which must be constantly supplied, at huge mark-ups, in order for the colored printer to run. Damn you Lexmark! But magenta’s story is far more interesting than the humdrum world of three-color printing.
Magenta is a bright and brilliant combination of red and blue, color wavelengths which are on the opposite ends of the visible electromagnetic spectrum. It is named after the Battle of Magenta which was fought in June, 1859 during the Second War of Italian Independence. The battle took place in Lombardy between the Franco Sardinian troops of Napoleon III and troops of the Austro-Hungarian empire. Afterwards the battlefield was stained red with the blood of defeated Austrians, which glowed brilliantly in the sunset (or something). Perhaps the famous poetic imagination of the French was responsible for the name, since we all know that Magenta is not red (in fact French chemists had just synthesized a fuchsine dye and were looking for a catchy name which reflected their nationalistic ambitions).
Not only is magenta not red, in fact, to the consternation of Isaac Newton, magenta initially did not seem to exist. In days long prior to the Battle of Magenta (and the new marketing name), Newton was performing experiments with prisms. He quantified the wavelengths of electromagnetic light in a familiar pattern: Red Orange Yellow Green Blue Indigo Violet “ROYGBIV” (indigo might be a bit of a fudge because the great man was fascinated with the mystic properties of the number seven, but that is a story for another time). One thing you will not notice in ROYGBIV is an M for magenta. The color does not exist when white light passes through a prism: magenta is “extra-spectral” (if that’s a word). Poor Newton was flummoxed until he combined the blue violet wavelengths of refracted light with the red wavelengths of light to form a very beautiful magenta. Some people are nodding thinking that blue and yellow combine to make green or red and yellow make orange, but that is not the point. Orange and green are in the rainbow. Magenta is not. To quote a helpful article from Liz Eliot at Biotele, “color perception is not in a one to one correspondence with the physical world.”
Even if it only exists because of a quirk of our brains, magenta is singularly lovely. Just beware that whenever you see someone clad in robes of fuchsia silk driving a fandango Maserati and proffering lovely magenta roses, you are being beguiled by your faulty human perceptions.