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The American goldfinch displays sexual dimorphism in its coloration; the male is a vibrant yellow in the summer and an olive color during the winter months, while the female is a dull yellow-brown shade which brightens only slightly during the summer. The male displays brightly colored plumage during the
The American goldfinch (Spinus tristis) is a small North American bird in the finch family. It is migratory , ranging from mid- Alberta to North Carolina during the breeding season , and from just south of the Canada–United States border to Mexico during the winter.
The metabolic rates of this species are typically 40% higher than a "normal" songbird of their size. When temperatures plunge as low as −70 °C (−94 °F), they can accelerate that rate up to five times normal for several hours. They also put on half again as much winter fat as their common redpoll and American goldfinch relatives.
In the winter, when many of these birds are migrating, farmers are now flooding their fields in order to provide temporary wetlands for birds to rest and feed before continuing their journey. [146] Rice is a major crop produced along this flyway, and flooded rice paddies have shown to be important areas for at least 169 different bird species ...
American goldfinch: Spinus tristis: mid-Alberta to North Carolina during the breeding season, and from just south of the Canada–United States border to Mexico during the winter Lawrence's goldfinch: Spinus lawrencei: California and Baja California, winters in the southwestern United States and northern Mexico Lesser goldfinch: Spinus psaltria
The American goldfinch is the state bird of New Jersey. This list of birds of New Jersey includes species credibly documented in the U.S. state of New Jersey and accepted by the New Jersey Bird Records Committee (NJBRC). As of March 2024 the list contained 490 species and a species pair.
Skin is in! There have been no shortage of wardrobe malfunctions in 2017, and we have stars like Bella Hadid, Chrissy Teigen and Courtney Stodden to thank for that.
The black-capped chickadee is the state bird of Massachusetts. This list of birds of Massachusetts includes species documented in the U.S. state of Massachusetts and accepted by the Massachusetts Avian Records Committee (MARC). As of July 2023, there are 516 species included in the official list. Of them, 194 are on the review list (see below), six have been introduced to North America, three ...