American Goldfinch in Cattails
The American goldfinch (Spinus tristis) is a small migratory North American bird found 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. It is a small finch, 11–14 cm (4.3–5.5 in) long, with a wingspan of 19–22 cm (7.5–8.7 in). It weighs between 11–20 g (0.39–0.71 oz).
The song of the American goldfinch is a series of musical warbles and twitters, often with a long note.
The American goldfinch displays sexual dimorphism in its coloration with the male being a vibrant yellow in the summer as shown here, and an olive color during the winter. The female is a dull yellow-brown, brightening only slightly during the summer.