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Cut-throat finches usually use nests constructed by other birds . A clutch usually consists of 3 to 6 white eggs, which hatch after an incubation period of 12–13 days. [8] The chicks leave the nest after 21–27 days but continue to be fed by their parents for a further three weeks. [9]
The California quail is the official state bird of California. This list of birds of California is a comprehensive listing of all the bird species seen naturally in the U.S. state of California as determined by the California Bird Records Committee (CBRC). [1] Additional accidental and hypothetical species have been added from different sources.
List of birds of Santa Cruz County, California. The county is in Northern California, located on the California coast, including northern Monterey Bay, and west of the San Francisco Bay and Silicon Valley. It includes the southwestern Santa Cruz Mountains. [1] [2]
The family Estrildidae was introduced in 1850 by the French naturalist Charles Lucien Bonaparte as "Estreldinae", a spelling variant of the subfamily name. [2] [3] In the list of world birds maintained by Frank Gill, Pamela Rasmussen and David Donsker on behalf of the International Ornithological Committee (IOC) the family contains 140 species divided into 41 genera. [4]
The true finches are small to medium-sized passerine birds in the family Fringillidae. Finches generally have stout conical bills adapted for eating seeds and nuts and often have colourful plumage. They occupy a great range of habitats where they are usually resident and do not migrate. They have a worldwide native distribution except for ...
Paiute Cutthroat are native only to Silver King Creek, a headwater tributary of the Carson River in the Sierra Nevada, in California. This subspecies is named after the indigenous Northern Paiute peoples. [5] [6] Paiute cutthroat trout are endemic to and protected within the Carson Ranger District of the Humboldt-Toiyabe National Forest.
The term "Darwin's finches" was first applied by Percy Lowe in 1936, and popularised in 1947 by David Lack in his book Darwin's Finches. [7] [8] Lack based his analysis on the large collection of museum specimens collected by the 1905–06 Galápagos expedition of the California Academy of Sciences, to whom Lack dedicated his 1947 book. The ...
The light birds are termed hesperophilus (the green-backed goldfinch) and are most common in the far western U.S. and northwestern Mexico. [ 8 ] The zone in which both light and dark males occur on a regular basis is broadest in the north and extends across the width of the Rocky Mountains and the Sierra Madre Occidental ranges.