Tundra Bean-Goose

Anser serrirostris

Rather large, dark gray-brown goose with typically small orange patch on bill, and orange legs. In flight lacks contrasting pale forewing areas of Pink-footed Goose and Graylag Goose. Not always safely told in the field from Taiga Bean Goose, but Tundra averages a shorter and thicker bill, vs. the longer, more sloping bill of Taiga. Breeds on tundra and winters in farmland and wetlands, where it associates readily with other geese.

识别特征

The length ranges from 68 to 90 cm (27–35 in), wingspan from 140 to 174 cm (55–69 in) and weight from 1.7–4 kg (3.7–8.8 lb). In the nominate subspecies, males average 3.2 kg (7.1 lb) and females average 2.84 kg (6.3 lb). The bill is black at the base and tip, with an orange band across the middle; the legs and feet are also bright orange.<p>The upper wing-coverts are dark brown, as in the white-fronted goose (Anser albifrons) and the lesser white-fronted goose (A. erythropus), but differing from these in having narrow white fringes to the feathers.<p>The voice is a loud honking, higher pitched in the smaller subspecies.<p>The closely related pink-footed goose (A. brachyrhynchus) has the bill short, bright pink in the middle, and the feet also pink, the upper wing-coverts being nearly of the same bluish-grey as in the greylag goose.

分类信息

There are two subspecies:

学名
Anser serrirostris
命名信息
Gould, 1852
Anseriformes
Anatidae
Anser

分布与栖息地

The tundra bean goose has no regular wintering sites, but is found in small groups among other grey goose species – among the most regular localities are WWT Slimbridge, Gloucestershire and Holkham Marshes, Norfolk.

照片

鸟叫声

其他鸟类

Sulphur-rumped Tanager

Sulphur-rumped Tanager

Heterospingus rubrifrons

Drab medium-gray tanager with lemon-yellow rump. Also look for fluffy white patch at the side of the breast, just under the bend of the wing. Fairly thick bill. Sexes alike. Usually seen in the forest canopy with mixed-species flocks, often in pairs.

Red-breasted Sapsucker

Red-breasted Sapsucker

Sphyrapicus ruber

Striking medium-sized woodpecker of far western North America. Beautiful plumage with mostly red head and breast and bold white slash on the shoulder. Some show vague pattern of black-and-white on the head, but always more extensive red than Red-naped Sapsucker. Also note limited white mottling on back, and no black on the breast. Juveniles are dark brown on the head and breast. Beware that some hybrids with Red-naped occur, and might be best left unidentified. Breeds in coniferous and mixed forests, descending to lower elevations in winter, as far south as northern Baja. Like other sapsuckers, drills rows of sap wells into tree bark. Listen for irregular drumming (like morse code) and various nasal calls.

Lesser Cuckooshrike

Lesser Cuckooshrike

Lalage fimbriata

Medium-sized gray bird (small for a cuckooshrike) with considerable geographic variation. Male averages darkest on the wings, throat, and breast, contrasting more heavily with the rest of the plumage than in the fairly uniform-looking male Indochinese Cuckooshrike. Female is pale gray with fine barring on the underparts. Undertail is black with white-tipped feathers concentrated at the end of the tail; does not appear as evenly graduated as in the larger Black-winged Cuckooshrike, and is less extensively white-tailed than Indochinese Cuckooshrike. Forages in the upper levels of forests and forest edge in lowland and hilly areas, often as part of mixed-species flocks. Song begins with a few clear tinkling notes, then transitions into a loud, insistent “jeh, jeh, jeh, jeh”.

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