Lark Sparrow vs American Tree Sparrow

In short

The Lark Sparrow and American Tree Sparrow can be distinguished by their head patterns and habitat preferences. The Lark Sparrow features a strikingly bold facial pattern with chestnut, white, and black, while the American Tree Sparrow has a more subdued look with a rusty cap and a gray face. Both species are sparrows, but they occupy different habitats, with the Lark Sparrow favoring open areas and the American Tree Sparrow more often found in shrubby or wooded areas.

Identification tips

• Head pattern: Look for the bold chestnut and black pattern on the Lark Sparrow's head versus the rusty cap and gray face of the American Tree Sparrow.
• Habitat: Note the open, grassy habitats for Lark Sparrows and shrubby or wooded areas for American Tree Sparrows.
• Vocalizations: Listen for the Lark Sparrow's complex song and the American Tree Sparrow's sweet, clear notes.

Size

Both species are similar in size, typical of sparrows, but the Lark Sparrow may appear slightly larger and more robust.

Plumage

The Lark Sparrow has a distinctive head pattern with a chestnut crown, white cheeks, and a black line through the eye. In contrast, the American Tree Sparrow has a rusty cap, a gray face, and a central breast spot on a plain grayish-brown body.

Behaviour

Lark Sparrows often forage on the ground in open areas, while American Tree Sparrows are more likely to be seen foraging in shrubs or low trees.

Habitat

Lark Sparrows prefer open, grassy areas with scattered trees or shrubs, often in disturbed sites. American Tree Sparrows are typically found in shrubby or wooded areas, especially during winter.

Voice

Lark Sparrows have a melodious song with trills and buzzes, whereas American Tree Sparrows have a sweet, musical song with clear notes. Calls differ as well, with the Lark Sparrow's being more complex.