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The male also holds the tail erect during courtship displays. The feet are quite powerful, which aids in swimming and diving. The duck sits low in the water in comparison to other ducks. [2] During breeding season, apart from the aforementioned bright-blue bill, the male's head and neck are glossy black, and the back and wings are a rich chestnut.
The adult male has a blue-black head and neck, with a black rump and tail; the back and flank are lightly flecked with a pale yellow colour. The wings of males have contrasting white upper-coverts and black remiges, metallic green speculum feathers, and rusty brown tertials feathers. The male also has a dark grey flecked with pale-yellow breast ...
The male has a long pointed tail (10 to 15 cm (3.9 to 5.9 in) long) and a dark grey bill crossed by a pink band. In winter, the male has a dark cheek patch on a mainly white head and neck, a dark breast and mostly white body. In summer, the male is dark on the head, neck and back with a white cheek patch.
Call Blue-winged teal drake in flight at Sacramento National Wildlife Refuge. The blue-winged teal is 40 cm (16 in) long, with a wingspan of 58 cm (23 in), and a weight of 370 g (13 oz). [9] The adult male has a greyish blue head with a white facial crescent, a light brown body with a white patch near the rear and a black tail.
This is a large duck, and the male's long central tail feathers give rise to the species' English and scientific names. Both sexes have blue-grey bills and grey legs and feet. The drake is more striking, having a thin white stripe running from the back of its chocolate-coloured head down its neck to its mostly white undercarriage.
The ruddy duck is a small, compact duck with a stout, scoop-shaped bill, and a long, stiff tail which it holds cocked upward. It has a slightly peaked head and a fairly short, thick neck. The male ruddy duck has a blackish cap that contrasts with its bright white cheeks. In summer, it has a rich chestnut body with a bright blue bill.
A black crown stripe runs over the top of the head, with chestnut patches on either side. A black-bordered white collar separates the head from the breast. The body is largely a lighter slate blue with chestnut sides. A black-bordered white bar divides the breast vertically from the sides. The tail is black, long and pointed.
The breeding male Maccoa stands out with its cobalt blue bill extending from a completely black head and throat. [4] The breast and back are chestnut coloured while the underparts are often greyish-brown, the rump is dark brown, and the tail and feet are black. [4] In flight, the male's off-white underwing feathers and white axillaries can be ...