愛宕の森と緑を守る会
Atago Forest and Green Protection Association
Bird Photo Studio-Birds Seen at Mt. Atago (2)
四十雀。スズメ目シジュウカラ科シジュウカラ属。白いほおと黒ネクタイ(幅広が雄)が特徴。スズメくらいの大きさで、全長は13~16センチ程度。鳴き声はチッチー、ジュクジュク、ツィピー、ピーツピ、ヂヂヂヂなどを甲高い声で繰り返す。単語を組み合わせて文章をつくり、伝達する能力があることが判明している。
尉火焚。スズメ目ヒタキ科。代表的な冬鳥で、越冬のために日本にやってくる全長15cmほどの渡り鳥。画像は11月に撮影したオス。メスは全体的に灰色がかった褐色。「尉」は銀髪、「火焚」は鳴き声が火打石を叩く音に似ているので命名された。翼にある白色の模様から、「紋付き鳥」ともいわれる。
白腹。スズメ目ツグミ科ツグミ属。体長は約25センチ。上部が灰褐色で腹は白っぽく、名称の由来に。くちばしの下半分の黄色が特徴的。アカハラに似るが、アカハラは胸~腹がオレンジ色。冬鳥として渡来。禁漁鳥。地面で昆虫やミミズを漁るが、木の実も食べる雑食性。地鳴きでキョッキョッと鳴くが、さえずりは多様。
鈴鴨。カモ目カモ科ハジロ属。雌は年間を通して地味な姿だが、雄は繁殖期になると派手な白黒になる。また、雌の嘴は特徴的な模様をしている。飛ぶときに発する音が鈴のようだとのことで名付けられたとのこと。キンクロハジロに極めて類似するが、冠羽(頭の羽飾り)の有無で区別可能(スズガモには無い)。愛宕山の麓の室見川河口で撮影。
相思鳥。スズメ目チメドリ科。特定外来生物に指定され、「日本の侵略的外来種ワースト100」に入っている。80年代にペットとして中国からの輸入が激増し、それが逃げたり遺棄(放鳥)されて野生化した。現在はペット飼育は禁止されている。ウグイス、コマドリ、メジロなどの在来種を駆逐し、昆虫補食で生態系を乱すと考えられている。全長15センチ程度。藪を好み、他の鳥のさえずりを真似するとか。
大鷺。コウノトリ目サギ科アオサギ属。白鷺の中で一番大きい。体長90センチ程度で、アオサギよりやや小ぶり。雌雄同色。繁殖期(春〜初夏)になると嘴が黒色、目元は緑色になる。この婚姻色がダイサギの特徴。この季節には他のサギ類と共に集団営巣する。その他の季節には嘴も目元も黄色で飾り羽がない。ダイサギのもう一つの特徴は、口吻が目の下より後ろまで達していることで、他のサギ類との判別の決め手に。
土鳩。ハト目ハト科。全長は33センチ程度。ペット用のカワラバトが野生化したもの。ご存じ、神社にはつきもの。「日本の侵略的外来種ワースト100」で有害駆除対象。餌やりの自粛等。以下、ノーコメント。
Great tit
chickadee. Passerine Tit family Tit genus. It features a white cheek and a black tie (wide is male). It is about the size of a sparrow and has a total length of about 13 to 16 cm. The cry repeats with a high-pitched voice such as Chitchi, Jukujuku, Zippy, Peatsupi, and Jijijiji. It has been found to have the ability to combine words to create and convey sentences.
Daurian Redstart
Lieutenant fire. Passerine Flycatcher. A typical winter bird, a migratory bird with a total length of about 15 cm that comes to Japan for wintering. The image is a male taken in November. The female is grayish brown overall. "Lord" is named because it has silver hair and "fire" is similar to the sound of a flint. It is also called a "crested bird" because of the white pattern on its wings.
Pale thrush
White belly. Passerine Thrush family Thrush genus. The body length is about 25 cm. The upper part is taupe and the belly is whitish, which is the origin of the name. The yellow color of the lower half of the beak is characteristic. Similar to Akahara, but Akahara has an orange chest to belly. Migratory as a winter bird. Forbidden bird. It is an omnivorous food that catches insects and earthworms on the ground, but also eats nuts. It squeaks in the ground, but there are various songs.
Greater scaup
Suzukamo. Waterfowl, Anatidae, Diving ducks. Females are sober throughout the year, but males become flashy black and white during the breeding season. The female beak has a characteristic pattern. It was named because the sound it makes when it flies is like a bell. Very similar to the tufted duck, but distinguishable by the presence or absence of crests (plumes on the head) (not in the Greater scaup). Taken at the mouth of the Muromi River at the foot of Mt. Atago.
Red-billed leopard
Red-billed leiothrix. Passerine Babbler. It is designated as a specific alien species and is included in the "100 Worst Invasive Alien Species in Japan". In the 1980s, imports from China as pets increased sharply, and they fled or were abandoned (released birds) and became wild. Pet breeding is currently prohibited. It is thought to destroy native species such as warblers, robins, and white-eyes, and to disrupt the ecosystem by feeding insects. The total length is about 15 cm. He likes bushes and imitates the chirping of other birds.
Great egret
Great egret. Ciconiiformes Heronidae Great Heron genus. The largest of the egrets. It is about 90 cm long and slightly smaller than a gray heron. Same color for both sexes. During the breeding season (spring to early summer), the beak turns black and the eyes turn green. This marital color is the characteristic of Great Egret. In this season, they nest together with other herons. In other seasons, the beak and eyes are yellow and there are no decorative wings. Another feature of the Great Egret is that its proboscis extends from under the eyes to the back, which is a decisive factor in distinguishing it from other herons.
Rock pigeon
Rock pigeon. Columbiformes, Columbidae. The total length is about 33 cm. A wild rock pigeon for pets. As you know, it's a part of shrines. Targeted for harmful extermination in "Japan's 100 Worst Invasive Alien Species". There is a need to refrain from feeding. No comment below.