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Showing posts with label woodpeckers. Show all posts
Showing posts with label woodpeckers. Show all posts

Sunday, June 23, 2019

Great Spotted Woodpecker (Dendrocopos major)

(24 cm.) Large: black and white, white cheek, red head spot.
The Great Spotted Woodpecker is a member of the family, “Picidae,” the woodpeckers. Like all woodpeckers, it is usually found climbing around the trunks of large trees in a concentrated search for insects and their larvae. This species is the most widespread woodpecker in China, and it is found throughout the East.

Both male and female Great Spotted Woodpeckers are “pied” birds that are primarily colored black and white. Both sexes sport a pinkish-red vent, the area found on the birds’ under parts near the base of their tails. The male displays a red spot on the back of its head that is missing in the female.

All woodpeckers have physical adaptations that allow them to lead their rather unconventional way of life. To allow them to grip tree bark, nature has provided woodpeckers with two pairs of toes which point in opposite directions and ensure firm gripping of tree bark. Their unusually stiff tail feathers provide added support as the birds grip tree bark. Woodpeckers also possess heavily-reinforced skulls which can absorb the impact of the birds’ drilling into tree trunks with their sharp bills. The tongue of a woodpecker in extremely long and can extend several centimeters beyond its bill, allowing the woodpecker to probe the holes it drills in search of food.

The Great Spotted Woodpecker is a non-migratory resident throughout most of its Chinese range. It will sometimes venture south in winter from the coldest parts of its range. It is still a common winter bird in Beijing during winter, however.

This species is omnivorous; and although it is fond of insects, it will also consume the eggs and chicks of other bird species, fruits, nuts, and seeds. It has even been known to eat small rodents.

The Great Spotted Woodpecker nests in a tree cavity usually in a soft-wooded tree that is in some state of decay. The female lays 5-7 eggs and after hatching, the chicks will gather at the hole entrance to clamber for food while the parent birds are absent on their food-finding missions.



Great Spotted Woodpecker (Photo by Maartin Visser)

Friday, December 26, 2014

Eurasian Wryneck (Jynx torquilla)

(17 cm.) White eye line over brown eye line; grayish-brown head and back; heavily barred whitish underparts; often twists neck from side to side.

The Eurasian Wryneck is perhaps the oddest bird in China. The bird gets its name from its habit of twisting its neck from side to side when it is alarmed. It has a bizarre, even alien air about it. The bird is a member of the woodpecker family, “picidae,” but it does not behave much like a woodpecker at all. It seems to be more the avian equivalent of an anteater, that odd, strangely shaped mammal that eats ants exclusively and laps them up with a long, sticky tongue.

Most woodpeckers conform to a standard mode of behavior that consists of climbing around on the trunk of a tree and probing for insects that can be found in the bark. If none can be found, drill holes in the tree and extract the insects that way. The wryneck rejects this established behavior and chooses instead to hunt on the ground for its favorite food, ants, in a most un-woodpecker-like manner.

The Eurasian Wryneck is another semi-cosmopolitan bird species that can be found in Europe and Asia and in winter, in Africa. In China, the Eurasian Wryneck can be found in the northeast during summer, through the Central East Coast during spring and fall and in the Southeast in winter.

If a female Eurasian Wryneck is disturbed while at its nest, it will engage in its head-twisting behavior while making with loud hissing noises. This odd behavior was noticed by some in Europe who practiced witchcraft and the bird was often used in rituals. Part of the bird’s Latin name, “jynx,” means to put an evil spell on someone, more often spelled “jinx,” in English.

Like other woodpeckers, the Eurasian Wryneck nests in the cavity of a tree. This species, lacking the powerful bill and adaptations for drilling that other woodpeckers possess, will not make its own hole, instead it will find abandoned cavities left by other woodpeckers.

The Eurasian Wryneck’s appearance is just as strange as its curious habits. It looks unlike any other bird and its long heavily barred and mottled body gives it a rather reptilian look. For all its strangeness, this species must be appreciated its uniqueness, for it is truly just one of a kind.



Eurasian Wryneck (Photo by Martien Brand)