House Sparrow vs Eurasian Tree Sparrow

The House Sparrow and Eurasian Tree Sparrow are both small, introduced sparrows often found in urban areas. The most reliable field mark is the distinct head pattern: the House Sparrow has a gray crown and a black bib, while the Eurasian Tree Sparrow features a chestnut crown and a black cheek spot.

Head pattern: Look for the chestnut crown and black cheek spot of the Eurasian Tree Sparrow. Bib: The House Sparrow male has a prominent black bib. Cheeks: Note the white cheeks with a black spot on the Eurasian Tree Sparrow. Crown color: Gray on House Sparrow males, chestnut on Eurasian Tree Sparrows. Habitat: Both are found near human activity, but the House Sparrow is more adaptable.

Both species are similar in size, but the House Sparrow is slightly bulkier.

The House Sparrow male has a gray crown, black bib, and white cheeks, while the female is more uniformly brown. The Eurasian Tree Sparrow, regardless of sex, has a chestnut crown, white cheeks with a black spot, and a more uniform brown back.

Both species are social and often found in flocks, especially around human habitation.

Both species are commonly found in urban and suburban areas, but the House Sparrow is more widespread and adaptable to various environments.

Both species have simple chirping calls, but the House Sparrow's call is a more monotonous 'chirrup', while the Eurasian Tree Sparrow's call is a softer, more musical 'chip'.