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The mulard (or moulard) is a hybrid between two different genera of domestic duck: the domestic Muscovy duck (Cairina moschata domestica) and the domestic duck (Anas platyrhynchos domesticus), derived from the wild mallard. American Pekins and other domestic ducks are most commonly used to breed mulards due to the breed's high meat production.
Endometritis is inflammation of the inner lining of the uterus (endometrium). [6] Symptoms may include fever , lower abdominal pain, and abnormal vaginal bleeding or discharge . [ 1 ] [ 4 ] It is the most common cause of infection after childbirth .
[25]: 506 More similar to the female mallard in North America are the American black duck (A. rubripes), which is notably darker-hued in both sexes than the mallard, [39] and the mottled duck (A. fulvigula), which is somewhat darker than the female mallard, and with slightly different bare-part colouration and no white edge on the speculum. [39]
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The feet and legs are orange to yellow-orange. The bill is olive green in the male and dull orange with dark markings in the female. The adult male has a darker head and neck. The female is generally lighter-colored than the male and has plain back feathers. A first-year male Hawaiian duck looks like an eclipse-plumaged male mallard.
The first patient in the U.S. was hospitalized with "severe" bird flu. Here's what you should know about symptoms, according to an infectious disease expert.
It has a chestnut head with a green eye patch. It is distinguished from drake common teals (the Eurasian relative of this bird) by a vertical white stripe on side of breast, the lack of both a horizontal white scapular stripe and thin buff lines on its head. [citation needed] The females are light brown, with plumage much like a female mallard ...
A male mallard. The speculum feathers are bright blue with white edges. The speculum is a patch, often distinctly coloured, on the secondary wing feathers, or remiges, of some birds. Examples of the colour(s) of the speculum in a number of ducks are: Common teal and green-winged teal: Iridescent green edged with buff. [1]