Thursday, May 22, 2008
Wednesday, May 21, 2008
Tuesday, May 20, 2008
Ghostly Chills In The Night Air
A purple and aqua afterglow bars the western sky. As the last gleam of sunset fades, there comes a sudden radiance in the east as the full moon vaults above the wooded hills.
Abruptly, from the wooded lot comes the "whoo, hoo, hoo, hoo" of the great horned owl. Visiting our neighborhood frequently is the barred owl whose screeches and screams send chills up your spine. The great horned owl's voice, a ghostly and weird sound, is much softer than the barred's shrieks.
We stand in the deepening dusk and search for the intruder whose voice comes across the moonlit lot. A few moments later a shadow drifts across the yard and vanishes in the branches of a tall, thickly-leafed sweet gum tree on the front lawn. The flight of the horned owl is powerful, swift, graceful and quiet. This predator's habitat is heavily wooded regions where it nests and finds ample food supply in the deep dark woods. It seldom leaves such security. This is only the third time it has visited us in the 40 years we have lived in this lightly wooded neighborhood.
The great horned usually does not nest in hollows but almost always usurps the nests of red-tailed hawks, eagles, ospreys or crows. They line these stolen stick nests with downy feathers of the owl. These owls are early breeders, the female laying 2 - 4, two being more common, rounded white eggs in February or early March. Incubation is 26 - 30 days with both parents participating. The young leave the nest when they are four or five weeks old. Only one brood a year is undertaken.
These owls are hostile and will not hesitate to attack humans if the owls think their nests or young are in danger. There have been reports that the owl's ferocious attacks draw blood.
Measuring 24 inches with a 60-inch wingspan, the great horned is the largest of the common owls in the Central Savannah River Area. It is some three or four inches larger than the barred, darker in color and brown rather than gray-browned as the barred. Perched, the horned's ear tufts are conspicuous, but in flight the tufts are not usually seen. The large head and short neck will tell you you are seeing the horned owl. It has a white throat patch and large yellow eyes.
Other names for this owl are "Tiger of the air", "Big hoot owl" and "Cat owl".
Though horned owls migrate from the frozen north when food becomes scarce, they are year-round residents of the CSRA.
Monday, May 19, 2008
Beauty And Tragedy Go Hand In Hand
In nature beauty and tragedy often go hand in hand. Some avian creatures are spectacularly lovely in their own right. Others acquire a magnificent beauty through albinism. Seeing a partially albino robin on the lawn set me to reminiscencing about other albinos I have seen.
The sad history of the great egret tells a tale of what is meant by exquisite beauty. This beautiful bird almost became extinct because of being killed for its lovely feathers, used by milliners to decorate hats. Other pretty feathered birds have faced s similar fate.
Albinism in wild creatures gives them a radiant but hazardous beauty. Science attributes this condition to a lack of pigmentation that causes a white color of the skin and of the hair. The eyes of a pure albino appear pink.
Usually albinism in wild creatures means high exposure, for they are more noticeable. Because of their beauty they are more apt to be destroyed by predators. Albinistic creatures have a reputation of being extraordinarily shy. Wild wisdom tells these birds they are different from other feathered creatures and they become wary.
In most cases nature gives to animals and birds of the wild protective coloring. To survive, albinos are cautious, more alert and usually stay close to deep cover. At least the mockingbird and brown thrasher that live in our neighborhood were extremely careful. Never once did I hear either of them sing. They were seen more often in the dusky hours of evening than at any other time of day.
The brown thrasher was not a pure albino. Its wings and tail were washed in light tan and its eyes were bronzy, not pink. Otherwise it was pure white. I never saw it out of cover, it was so unusually wary. It stayed in the neighborhood all that summer, disappearing during the winter.
The next nesting season a friend called to say a "white brown thrasher" with a natural plumaged mate was nesting in his yard. Though we had not known the sex before, we now assumed she was the same bird seen in our yard. She nested on his premises for two summers, then disappeared. As far as we could determine there were no albinistic young in the broods from the two-year nestings.
The white mockingbird was first observed eating lushish mahonia holly berries in our yard. He was not as shy as the thrasher, shyness not being a characteristic of the mocker, and was seen by several of our neighbors. He, or she, stayed around for four years. If the bird nested, the nest was never found.
Several years ago a brood of albinistic bluebirds were hatched at Silver Bluff Sanctuary. Both parents had normal plumage.
Back during the big snow of "73 there was a partial albino cardinal at a fellow birder's home. The beauty of it still lingers in my mind. Notes made at the time I observed the bird will give you a good idea of its beauty.
"The top feathers of its crest are pink, the lower feathers white. The head is white, black eyes, a rosy-pink bill. The throat is white as is the breast and belly. Its back is white with pink secondary and red primary feathers, olive shoulders. Out tail feathers are a dark red-olive. The inner tail feathers are pink. This bird is much more beautiful than a true albino."
Albinism in birds is by no means as rare as many suppose, but being shy because of their white color, albinos tend to shield themselves in deep cover for their own safety making it hard for us to know they are about.
Sunday, May 18, 2008
This Wren Arrived With Style
The Carolina wren, South Carolina's state bird, has built a mansion somewhat on the order of Bill Gate's newest nest in a large hanging basket of Boston ferns on the edge of the patio.
The little architect had already bulldozed the site for the foundation when I first noticed the building project. He must have completed the job in one morning for the roots, stems, leaves and branched below the basket were a mess that could not have been overlooked for long.
I decided to let him have the basket. Ferns can be replaced. The joy and excitement of watching a sassy little mite build his love nest doesn't come so easily.
It is compared to Bill Gates' nest because it is the largest Carolina wren's nest I have ever observed. Country wrens, so say scientists, usually build larger nests than do those who hang around suburban homes. Could it be that the country cousin has come to town?
Half the fern was dumped out and a shallow depression was made in the dirt. I watched both male and female bring pine straw, small weed and flower stems, tissue paper, newspaper, small roots, tiny stems and dead leaves to be used in building the nest. It was lined with hair and several small feathers. When finished it was roofed over, mainly with pine straw, with the side opening in the nest facing the patio.
This plump and stumpy bird measures five and a half inches from its slender curved bill to the end of its crocked tail. Its rusty cap sets off the white stripe over his inquisitive brown eyes. The rich tones and earthy browns of his topcoat, the buffy-white of his underparts, with flanks washed in cinnamon-pink, blend with its natural habitats.
Its russet wings and tail are finely barred with black. The wren has strong legs, big feet and long claws, equipping it to do its thing . . . destroying insects.
Watching the activity of these energetic birds brought to mind how citizens of South Carolina had to fight to get the Carolina wren legally declared the official bird of South Carolina.
In 1930, the Carolina wren and the mourning dove were voted on by school children, civic club members and the public for state bird. The Carolina wren won by a substantial margin and was declared the state bird by popular vote. The legislature was asked by the State Garden Club to make it official. That body, however, postponed the issue for nine years until some of its members decided the mockingbird would be a more likely representative of the state.
In 1939, the mockingbird was designated the official bird of the state by the legislature. Now the General Assembly thought naming the State Bird was a "done deal."
But wait! Feathers flew. A fight ensued between the legislature and garden club members, school children, Audubon Societies and the public at large. Another campaign was waged by the people of the state.
Finally, the pressure was so great the General Assembly backed down. They decided this high honor should rightfully go to the Carolina wren.
The mockingbird was booted down the capitol steps in Columbia and the 1939 act designating the mockingbird as the state bird was repealed.
In 1948, the Carolina wren was officially declared South Carolina's State Bird. The fight that had raged for 18 years was over!
The mockingbird apparently doesn't hold grudges, for he still sings as beautifully in South Carolina as he does in Florida, Tennessee, Mississippi, Arkansas and Texas; the five other states that have chosen him as their State Bird.
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