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Female in Bavarian Forest, Germany Tetrao urogallus urogallus—eggs Male capercaillie marking his territory to a hiker in a Finnish taiga forest. The breeding season of the western capercaillie starts according to spring weather progress, vegetation development and altitude between March and April and lasts until May or June. Three-quarters of ...
Females lay an egg a day if kept on the proper diet. Nesting sites can be as spartan as a quiet corner or a depression in the ground against a wall. Preferably, a clump of long grass, tea tree branches, or pile of loose herbage should be provided. Often, a hen lays eggs on the aviary floor without the use of a nest.
The genus Tetrao was introduced in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of his Systema Naturae. [1] The genus name is the Latin word for a game bird, probably a black grouse. [2] The black grouse was included by Linnaeus in the genus Tetrao but is now placed in the genus Lyrurus.
The grey francolin was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae.He placed it with all the grouse like birds in the genus Tetrao and coined the binomial name Tetrao pondicerianus. [2]
The black-billed capercaillie (Tetrao urogalloides), also known as eastern capercaillie, Siberian capercaillie, spotted capercaillie or (in Russian) stone capercaillie, [2] is a large grouse species closely related to the more widespread western capercaillie.
Rare Bird Yearbook 2008: The World’s most Threatened Birds. MagDig Media. p. 139. International Union for Conservation of Nature and Natural Resources (IUCN). (1979). Cantabrian capercaillie (Tetrao urogallus cantabricus). Compiled by W.B. King on behalf of the International Council for Bird Preservation and the Survival Service Commission of ...
The white-tailed ptarmigan was given the scientific name Tetrao (Lagopus) leucurus by the Arctic explorer John Richardson in 1831. [3] It was later determined that Lagopus had sufficient distinguishing features to be regarded as a separate genus and the bird became Lagopus leucurus.
The hazel grouse (Tetrastes bonasia), sometimes called the hazel hen, is one of the smaller members of the grouse family of birds.It is a sedentary species, breeding across the Palearctic as far east as Hokkaido, and as far west as eastern and central Europe, in dense, damp, mixed coniferous woodland, preferably with some spruce.