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The male also feeds the female during breeding and incubation of the eggs, and raising of the young, [17] and the male is the primary feeder of the fledglings (who can be differentiated from the females by the pin feathers remaining on their heads). Females are typically attracted to the males with the deepest pigment of red to their head, more ...
The eggs are incubated by the female alone, though the male brings her food as she nests, and most mating pairs raise only one brood each year. [21] The chicks hatch 12–14 days after incubation begins. Like all passerines, the chicks are altricial; they are hatched naked, with reddish bodies, pale grey down, and closed eyes. [31]
The eggs are incubated for 11–13 days by the female, who is fed by the male. The chicks are fed by both parents. Initially they receive a mixture of seeds and insects, but as they grow the proportion of insect material decreases. [25] For the first 7–9 days the young are brooded by the female. The nestlings fledge 13–18 days after hatching.
The male and female American goldfinches travel together searching for suitable nest sites. The female goldfinch builds a nest made of twigs, rootlets, and plant stems, and usually 4 to 20 feet ...
The eggs are greyish-white, bluish-white or beige with reddish or brownish spots or blotches concentrated at the broader end. On average the eggs measure 20.0 mm × 14.6 mm (0.79 in × 0.57 in) and weigh 2.17 g (0.077 oz). They are incubated by the female for 13–14 days. [15] The male feeds her at the nest during this period. Chicks are ...
The average size of an egg is 19 mm × 15 mm (0.75 in × 0.59 in) with a weight of 2.2 g (0.078 oz). The eggs are incubated for 10–16 days by the female. [32] The chicks are altricial, hatching nearly naked with closed eyes, and are fed by both parents but mainly by the female, who broods them for around six days. [34]
The specific epithet psaltria is Ancient Greek for a female harpist. [5] The type locality is Colorado Springs, Colorado. [6] The lesser goldfinch is now placed in the genus Spinus that was introduced in 1816 by the German naturalist Carl Ludwig Koch. [7] [3] Five subspecies are currently recognized, [3] though their validity has been ...
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