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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 most common behavior involves the male chasing after the female. These chases may last for 20 or more minutes and cover a large area. The male and female American goldfinches travel together ...
The male displays brightly colored plumage during the breeding season to attract a mate. The American Goldfinch is a granivore and adapted for the consumption of seedheads, with a conical beak to remove the seeds and agile feet to grip the stems of seedheads while feeding. It is a social bird, and will gather in large flocks while feeding and ...
Before and after social pairing and mating occurs, bird song is mainly dedicated to territorial defense. This behavior is a sexually selected trait because it ensures defense of the female who is rearing her offspring. [9] There is also some evidence that vocal amplitude effects male-male competition in such species as the great tit. Most ...
American goldfinch When spring nears, many beginner bird-watchers are curious about what they think is a new species in their yard. But, in fact, it’s only the male American goldfinch that’s ...
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.
Home to many breeding colonies, Maine has plenty to offer. Plan your summertime trip to see Puffins, Murres, and Razorbills at their best. There's also the American Goldfinch, American Robin, and ...
Male peacock spider, Maratus volans, courtship display In some species, males will perform ritualized movements to attract females. The male six-plumed bird-of-paradise (Parotia lawesii) exemplifies male courtship display with its ritualized "ballerina dance" and unique occipital and breast feathers that serve to stimulate the female visual system. [7]