Sparrow or American Tree Sparrow?
Here's how to tell the difference
Sparrow
American Tree Sparrow
Sparrow
Passer
Also known as: True Sparrow
General appearance
Sparrows are small, plump birds with short tails and subdued colors. They generally exhibit brown, black, and white coloration, with streaked or solid patterns. Sparrows also have a stout beak, designed for seed eating.
Male vs female
Male and female sparrows can be distinguished by their coloration and markings. Males tend to have more distinct and vibrant colors, like black bibs and white cheeks, while females usually have duller, brownish colors. Seasonal changes in plumage make the males more distinct during the breeding season.
Juvenile
Juvenile sparrows have similar coloration to females but are often even duller and may show some streaking. Their beaks start black, then turn yellow and finally the adult's color. Juveniles often show a more marked gape (the sides of the beak) than adults.
Size
4.1 - 7.1 in/0.4 - 1.7 oz
There's more to learn about Sparrow
View full detailsAmerican Tree Sparrow
Spizelloides arborea
Also known as: Winter Sparrow
General appearance
The American tree sparrow is a small, slender bird with a distinct rusty cap and gray face. A notable brown streak extends through the eye, and the bird has a bicolored bill with a dark upper mandible and yellow lower mandible. Its back and wings are brown with dark streaks, while the underparts are pale gray with a central dark spot on the breast. The tail is long and notched with two white wing bars that stand out.
Male vs female
There is minimal sexual dimorphism in American tree sparrows, meaning males and females look alike. Both genders share the same coloration and markings, making them difficult to distinguish based solely on appearance.
Juvenile
Juvenile American tree sparrows resemble adults but with slightly duller and less distinct markings. Young birds may have a more muted crown and face pattern. As they mature, their plumage becomes more defined, resembling the adults in coloration and characteristics.
Size
5.5 - 6.5 in/0.5 - 1.0 oz
There's more to learn about American Tree Sparrow
View full detailsHow to tell the Sparrow from the American Tree Sparrow
Visual differences
The Sparrow (Passer) is plump with a short tail, and exhibits subdued brown, black, and white colors. They have a stout beak suited for seed eating. Males have distinctive markings, like black bibs. The American Tree Sparrow is slender, with a distinct rusty cap, gray face, and a notable brown eye streak. Its bill is bicolored (dark upper, yellow lower). The Sparrow's tail is shorter compared to the Tree Sparrow’s long, notched tail with white wing bars. Sparrows are generally larger, at 4.1-7.1 inches; Tree Sparrows are 5.5-6.5 inches long.
Key differences and behavior
Sparrows (Passer) and American Tree Sparrows (Spizelloides arborea) exhibit key behavioral differences that aid in field identification. Sparrows thrive in varied climates, including urban and desert areas, while American Tree Sparrows prefer northern habitats with treelines and tundra. Sparrows are more social, flocking in groups, whereas American Tree Sparrows, though found in groves, engage in less communal behavior. Sparrows build untidy nests in shrubs or man-made structures using diverse materials, while American Tree Sparrows construct neat, ground-level nests with grasses and feathers. Both species consume seeds and insects, but sparrows are adaptable feeders, including human food scraps, whereas American Tree Sparrows focus on seasonal diet shifts. Sparrows’ courtship includes singing and wing fluttering; American Tree Sparrows use singing and flight displays to claim territories. Both feed chicks insects, but sparrow chicks fledge later at 14-17 days, compared to the American Tree Sparrow's 9-12 days.
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