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Birds do not act aggressively toward predators within their territory; their only reaction is alarm calling. Predators include snakes, weasels, squirrels, and blue jays, which may destroy eggs or kill young, and hawks and cats, which pose a threat to both young and adults. The oldest known American goldfinch was 10 years and 5 months old. [26]
Bright yellow and red carotenoid pigments are commonplace in this family, and thus blue structural colours are rather rare, as the yellow pigments turn the blue color into green. Many, but by no means all true finches have strong sexual dichromatism, the females typically lacking the bright carotenoid markings of males. [1]
Here’s what you might not know about the country’s top five most commonly sighted backyard birds, according to 2015 to 2021 data from Project FeederWatch, a November to April survey of birds ...
The family Fringillidae are the "true" finches. The International Ornithological Committee (IOC) recognizes these 239 species in the family, distributed among three subfamilies and 50 genera. Confusingly, only 79 of the species include "finch" in their common names, and several other families include species called finches.
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The northern mockingbird is the state bird of Texas. The list of birds of Texas is the official list of species recorded in the U.S. state of Texas according to the Texas Bird Records Committee (TBRC) of the Texas Ornithological Society. As of January 2024, the list contained 664 species. Of them, 170 are considered review species. Eight species were introduced to Texas, two are known to be ...
The house finch (Haemorhous mexicanus) is a North American bird in the finch family. It is native to Mexico and southwestern United States , but has since been introduced to the eastern part of North America and Hawaii; it is now found year-round in all parts of the United States and most of Mexico, with some residing near the border of Canada .
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