Jeju Gotjawal

Archive for July, 2010

Spot-billed Duck (Anas poecilorhyncha)흰뺨검둥오리

by on Jul.28, 2010, under birds


Characteristics : Total length of the body is about 61cm. Its size is almost same as wild dock and domestic dock. It has dark brown color. Although female and male is alike, male’s 위·아래꼬리덮깃 are more like dark brown color than female’s. Male’s cheeks seem to be brighter than female’s. Except light brown cheeks, its whole body is uniformly dark brown. A vivid third-wing feather is seen well from a distance. The tip of its black beak has yellow color, also its leg orange color.

Ecology : It commonly breeds at the water edge, which came to the south pass the winter as a group. It makes a round nest in the bushes of grassland or hill on a pond and reservoir.

Where you can see this species at Dongbaekdongsan : It comes to Jeju as a winter migratory birds, but some of them breed as resident bird. In Camellia hill, we can see it daytime by a pond, feather and the traces eaten by rapacious birds are observed.

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Mandarine Duck (Aix galericulata)원앙

by on Jul.28, 2010, under birds

Characteristics : The whole body length is about 45cm. Male has white eyebrow lines. After breeding season its feather is similar to that of female, but because  male’s beak is red, it can be distinguished with female.Female is entirely dark gray and has white dots on the belly. Its thready eyebrow is white and the beak is black.

Ecology : It which is gorgeous nest in a hole on a tree in a valley of a broad-leaved forest. It breeds in an artificial bird box and sits on a tree frequently. In winter, flock of them live together. It which passes the winter in the Camellia Hill usually eats an acorn of Ring-cupped Oak.

Where you can see this species at Dongbaekdongsan  : In Jeju, it comes as a winter migratory bird, and passes the winter at a river and a valley. During the period of passing the winter, we can see it, it’s excrement and feather near a pond of the Camellia Hill.

※  natural monument No. 327


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white-ogre-mushroom(Amanita virgineoides, 흰가시 광대 버섯)

by on Jul.28, 2010, under mushrooms


Amanita virgineoides (Basidiomycetes Agaricales Amanitaceae)

Edibilty : edible (We often mistake it for poisonous mushroom because of its thorn’ squama.)

Time&Place of occurrence : generated in summer~autumn and on the ground of mixed forest.

Features : The diameter of cap is 9~20cm and it is ovate, and its color is white and it is covered with small powder. The surfaces have conical cap, and the its thorns’ diameter is 3cm. The thorns are washed away during rainy periods, then cap results in the blad. Its Gills and its shape are exposed while growing. The thickness of a mushroom stem is about 1.5~2.5cm, and its length is about 12~22cm. The stem’s root is swollen and empty like a dumbbell. Its surface is attached with a piece of scales like fluffes and the color on the surface is white. If we touch it, Our hands are covered with scales’ powder. The size of spores is 8~10.5×6~7.5μm, and its shape is oval.

The place you can see is Dongbaek garden : It grows in group around small trees’ root near to the forest where we take walks.


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Asian Keelback Snake (Amphiesma vibakari ruthveni) 대륙유혈목이

by on Jul.26, 2010, under reptile


Characteristics  :  Its back is reddish brown or dark grayish brown, and the color is light at the rear. 5 lines of scales on its head and center of its back are dark brown. It has mastodon bones on its body and black spots at the end of each scale on its belly. This species in Korea is very small, about 40 to 70cm and usually around 50cm in length. It is not a poisonous snake, and is mild in temper.

 Ecology  :  This snake is active in the evening or when it isn’t sunny or clear. It swims well but it is more easily affected by dryness and cold than other reptiles in the same place are. It lays 2 to 10 eggs or so in July and August, and goes into hibernation. From May of the following year, it becomes active again. It usually lives on small frogs or worms.

 Where you can see this species at Dongbaekdongsan  :  It is observed at a pond, around the swampy land and the forest.


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by on Jul.25, 2010, under trees


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