Web17 sep. 2024 · Common Name: Mallard Scientific Name: Anas platyrhynchos. The most well known and easily recognizable duck in the world, the mallard is also a popular game bird. These ducks frequently … Both sexes have an area of white-bordered black or iridescent blue feathers called a speculum on their wings; males especially tend to have blue speculum feathers. The mallard is 50–65 cm (20–26 in) long, of which the body makes up around two-thirds the length. Meer weergeven The mallard or wild duck (Anas platyrhynchos) is a dabbling duck that breeds throughout the temperate and subtropical Americas, Eurasia, and North Africa, and has been introduced to New Zealand, … Meer weergeven The mallard is widely distributed across the Northern and Southern Hemispheres; in North America its range extends from southern and central Alaska to Mexico, the Hawaiian Islands Meer weergeven Feeding The mallard is omnivorous and very flexible in its choice of food. Its diet may vary based on several factors, including the stage of the breeding cycle, short-term variations in available food, nutrient availability, and Meer weergeven Since 1998, the mallard has been rated as a species of least concern on the IUCN Red List of Endangered Species. This is because it has a large range–more than 20,000,000 … Meer weergeven The mallard was one of the many bird species originally described in the 1758 10th edition of Systema Naturae by Carl Linnaeus. He gave it two binomial names: Anas … Meer weergeven The mallard is a medium-sized waterfowl species that is often slightly heavier than most other dabbling ducks. It is 50–65 cm (20–26 in) long – of which the body makes up around two-thirds – has a wingspan of 81–98 cm (32–39 in), and weighs 0.7–1.6 kg (1.5–3.5 … Meer weergeven In addition to human hunting, mallards of all ages (but especially young ones) and in all locations must contend with a wide diversity of predators including raptors and owls, mustelids, corvids, snakes, raccoons, opossums, skunks, turtles, large fish, felids, and Meer weergeven
Blue Head on a Mallard BirdForum
Web2 aug. 2024 · The blue colours of the speculum of the mallard (Anas platyrhynchos), both male and female, and the green head feathers of the male arise from light interacting with stacks of melanosomes residing in the feather barbules.Here, we show that the iridescent colours can be quantitatively explained with an optical multilayer model by using a … Web12 okt. 2015 · Download this free photo of Blue Headed Mallard Duck from Pixabay's vast library of royalty-free stock images, videos and music. bolines definition
The 8 Coolest Hybrid Ducks and Geese You’ve Ever Seen
Web31 jan. 2024 · Originally, the duck was bred with the intent of creating a blue (gray) variety, though black, chocolate, Cumberland blue, blue trout, apricot trout, and Mallard varieties were also developed. 2. Swedish Duck Image Credit: ... The drake differs in that it has a dark blue head and green bill, while the hen has a blue-slate head and bill. WebMallard (Anas platyrhynchos) Body length: 50-64 centimeters (20-26 inches) Weight: 720 grams-1.58 kilograms; Wingspan: 81-98 centimeters (32-39 inches) ... These ducks display sexual dimorphism. The males have a light brown body, a greyish-blue head, a black tail, a white crescent on their face, and a white patch on their rump. On the other ... WebVtg Woolrich Ducks Unlimited Shirt Men's 2XL Button Down Mallard. $23.99 + $6.99 shipping. Picture Information. Picture 1 of 6. Click to enlarge. Hover to zoom. Have one to sell? ... Blue. Material. Cotton. Accents. Button. Vintage. Yes. Fit. Regular. Brand. Ducks Unlimited. Size Type. Regular. ... Duck Head Short Sleeve Button-Up Casual Button ... bolin elementary lunch