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The common shelduck (Tadorna tadorna) is a waterfowl species of the shelduck genus, Tadorna. It is widespread and common in the Euro-Siberian region of the Palearctic , mainly breeding in temperate and wintering in subtropical regions; in winter, it can also be found in the Maghreb .
[4] [5] The type species is the common shelduck. [5] The genus name comes from the French name Tadorne for the common shelduck. [6] It may originally derive from Celtic roots meaning "pied waterfowl", essentially the same as the English "shelduck". [7] A group of them is called a "dopping," taken from the Harley Manuscript. [8]
Molluscs are a large phylum of invertebrate animals, many of which have shells. Edible molluscs are harvested from saltwater, freshwater, and the land, and include numerous members of the classes Gastropoda (snails), Bivalvia (clams, scallops, oysters etc.), Cephalopoda (octopus and squid), and Polyplacophora (chitons).
Fish larvae are part of the zooplankton that eat smaller plankton, while fish eggs carry their own food supply. Both eggs and larvae are themselves eaten by larger animals. [2] [3] Fish can produce high numbers of eggs which are often released into the open water column. Fish eggs typically have a diameter of about 1 millimetre (0.039 in).
The paradise shelduck (Tadorna variegata), also known as the paradise duck, or pūtangitangi in Māori, is a species of shelduck, a group of goose-like ducks, which is endemic to New Zealand. Johann Friedrich Gmelin placed it in the genus Anas with the ducks, geese, and swans .
An ovivore or ovivorous animal is one that eats eggs, from Latin ovum, egg, and vorare, to devour. [1] An obligate ovivore or egg predator is an animal that feeds exclusively on eggs. [2] This is different from an egg parasite, an animal such as a parasitic wasp which grows inside the egg of another insect. [3]
At Chilika Lake, Mangalajodi, Odisha, India. The ruddy shelduck (Tadorna ferruginea) is a member of the shelduck genus Tadorna; in the wildfowl family Anatidae.The bird was first described in 1764 by the German zoologist and botanist Peter Simon Pallas who named it Anas ferruginea, but later it was transferred to the genus Tadorna with the other shelducks.
The Australian shelduck (Tadorna tadornoides), also known as the chestnut-breasted shelduck or mountain duck, is a shelduck, a group of large goose-like ducks part of the bird family Anatidae. The genus name Tadorna comes from Celtic roots and means "pied waterfowl". [2] They have a striking chestnut-coloured breast and black body.