Australia Birds - Masked Lapwing オーストラリアの野鳥・ズグロトサカゲリ（頭黒鶏冠鳧）

ズグロトサカゲリ（頭黒鶏冠鳧）
学名：Vanellus miles
英語名：Masked Lapwing

Wikipediaによると、形態は全長約35-38cm。頭部の黄色のマスクが非常によく目立つ。翼角に黄色い小さな爪がある。

英語版では、

The masked lapwing is the largest representative of the family Charadriidae. It measures from 30 to 37 cm (12 to 15 in) in length and has a wingspan of 75–85 cm (30–33 in). The nominate subspecies (V. m. miles) weighs 191–300 g (6.7–10.6 oz), while the southern race (V. m. novaehollandiae) is larger and weighs 296–412 g (10.4–14.5 oz).The subspecies from northern Australia and New Guinea (V. m. miles) has an all-white neck and large yellow wattles with the male having a distinctive mask and larger wattles. The subspecies found in the southern and eastern states of Australia and in New Zealand (V. m. novaehollandiae), and often locally called the spur-winged plover, has a black neck-stripe and smaller wattles. (Note that the northern-hemisphere spur-winged plover is a different bird.)
The birds have a wide range of calls which can be heard at any time of the day or night: the warning call, a loud defending call, courtship calls, calls to its young, and others. Since this bird lives on the ground it is always alert and even though it rests it never sleeps properly.