Lesser Goldfinch or Lawrence’s Goldfinch?

Here's how to tell the difference

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Lesser Goldfinch

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Lawrence’s Goldfinch image 1

Lawrence’s Goldfinch

Lesser Goldfinch

Spinus psaltria

General appearance

The lesser goldfinch is a small songbird, about 4.5 inches long, with a wingspan of approximately 8 inches. It has a short, conical bill ideal for seed eating. Its tail is notched and relatively short. The species is notable for its bright yellow underparts, contrasting with black or olive-green upperparts. The wings and tail are dark with white wing bars and edges, giving it a distinctive appearance in flight.

Male vs female

Male lesser goldfinches typically display a glossy black cap and upper back. Regionally, their back can also appear olive-green. Females are generally more subdued, with olive-green upperparts and a less distinct cap. Both genders share the yellow underparts, but females have duller shades. During the breeding season, males are brighter with clearer contrast, while females remain consistent year-round.

Juvenile

Juvenile lesser goldfinches resemble adult females, displaying olive-green upperparts and yellowish underparts but with more muted overall tones. They lack the distinct black cap found in adult males. As they mature, male juveniles develop the characteristic coloration and markings of adult males, while females retain their more subdued appearance.

Size

3.5 - 4.3 in/0.3 - 0.4 oz

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How to tell the Lesser Goldfinch from the Lawrence’s Goldfinch

Visual differences

The Lesser Goldfinch is about 4.5 inches long with bright yellow underparts and black or olive-green upperparts, small with a short, notched tail, and a conical bill. Males have a black cap, while females are more olive. Lawrence's Goldfinch is slightly larger, 4.7 inches long, with gray-bodied plumage, bright yellow on wings and chest, and a black forehead and throat, displaying a more vivid contrast, especially in males. The distinctive yellow and black patterns in Lawrence's Goldfinch make it visually distinct from the more uniformly colored Lesser Goldfinch.

Key differences and behavior

The Lesser Goldfinch and Lawrence's Goldfinch exhibit distinct behavioral differences. Lesser Goldfinches are more adaptable, often visiting feeders and consuming a variety of seeds, while Lawrence's Goldfinches are nomadic, migrating based on food and water availability. Preferred habitats vary; Lesser Goldfinches favor semi-open areas with proximity to water, whereas Lawrence's Goldfinches inhabit oak and pine woods, migrating to weedy fields in winter. Breeding behaviors also differ: Lesser Goldfinch males perform display flights during courtship, and females build nests solo. In contrast, Lawrence's Goldfinch males follow the female closely and may assist in nest construction. Both species feed on seeds, but Lesser Goldfinches favor daisy family seeds, while Lawrence's Goldfinches prefer weeds like fiddleneck. Notably, Lawrence's Goldfinches are often bullied by Lesser Goldfinches despite their slightly larger size (4-5 inches vs. 4.5 inches) and weight (0.3-0.4 oz vs. 0.28-0.4 oz).

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