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Like many precocial hatchlings, domestic chickens are already covered with a coat of downy feathers when they hatch. The word down comes from the Old Norse word dúnn, which had the same meaning as its modern equivalent. [1] The down feather is considered to be the most "straightforward" of all feather types. [2]
The common murre mainly eats small schooling forage fish 200 mm (8 in) long or less, such as polar cod, capelin, sand lances, sprats, sandeels, Atlantic cod and Atlantic herring. Capelin and sand lances are favourite food, but what the main prey is at any one time depends much on what is available in quantity. [31]
A typical vaned feather features a main shaft called the quill with an upper section called the rachis. Fused to the rachis are a series of branches, or barbs ; the barbs in turn have barbules branching off them, and they in turn branch yet again with a series of growths called barbicels , some of which have minute hooks called hooklets for ...
Newly hatched chicks have downy feathers that do not become waterproof until the chicks grow into juveniles. [20] The juvenile plumage, attained by thirty days after a chick hatches, is dark brown or gray above and white below. These feathers are mainly needed to protect the chicks from the strong sun rather than keep them warm.
Alicanto – bird with luminescent feathers which feeds on gold or silver [1] Anqa – large mysterious or fabulous female bird; Anzû (Mesopotamian) – massive bird who can breathe fire and water; Bare-fronted Hoodwink – bird with the ability to be "almost seen" Bird People. Alkonost – female with body of a bird
In a continental collision, a subducting tectonic plate pushes on the plate above it, making the rock fold, often to the point where thrust faults form, and a mountain chain rises. On the upper plate, the land between the mountains and the undeformed continent bends downward, forming a foreland basin .
A similar edible tunicate in the Mediterranean is Microcosmus sabatieri, also called a sea violet or sea fig. [11] There are concerns about the safety of eating P. chilensis, given its high concentration of vanadium, with up to 1.9 mg/kg found in dry blood plasma. [12] Vanadium is a heavy metal, considered toxic at any more than incidental ...
Vitis rupestris is a species of grape native to the United States that is known by many common names including July, Coon, sand, sugar, beach, bush, currant, ingar, rock, and mountain grape. It is used for breeding several French-American hybrids as well as many root stocks.