| American tree sparrow | |
|---|---|
 | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Passeriformes |
| Family: | Passerellidae |
| Genus: | Spizelloides Slager & Klicka, 2014 |
| Species: | S. arborea |
| Binomial name | |
| Spizelloides arborea (Wilson, 1810) | |
 | |
| Synonyms | |
Spizella monticola Contents | |
The American tree sparrow (Spizelloides arborea), also known as the winter sparrow, [2] is a medium-sized New World sparrow.
It had been classified under the genus Spizella, but multilocus molecular evidence suggested placement in its own genus.
Measurements: [3]
Adults have a rusty cap and grey underparts with a small dark spot on the breast. They have a rusty back with lighter stripes, brown wings with white bars and a slim tail. Their face is grey with a rusty line through the eye. Their flanks are splashed with light brown. They are similar in appearance to the chipping sparrow.
Their breeding habitat is tundra or the northern limits of the boreal forest in Alaska and northern Canada. They nest on the ground. American tree sparrows migrate into southern Canada and the United States to spend the winter.
These birds forage on the ground or in low bushes, often in flocks when not nesting. They mainly eat seeds and insects, but also eat some berries. They are commonly seen near feeders with dark-eyed juncos.
This bird's song is a sweet high warble descending in pitch and becoming buzzy near the finish.
The white-throated sparrow is a passerine bird of the New World sparrow family Passerellidae. It breeds in northern North America and winters in the southern United States.
The dark-eyed junco is a species of junco, a group of small, grayish New World sparrows. The species is common across much of temperate North America and in summer it ranges far into the Arctic. It is a variable species, much like the related fox sparrow, and its systematics are still not completely resolved.
The chipping sparrow is a species of New World sparrow, a passerine bird in the family Passerellidae. It is widespread, fairly tame, and common across most of its North American range.
The fox sparrow is a large New World sparrow. It is the only member of the genus Passerella, although some authors split the species into four.
Henslow's sparrow is a passerine bird in the family Passerellidae. It was named by John James Audubon in honor of John Stevens Henslow. It was originally classified in the genus Emberiza and called Henslow's bunting.
The Nashville warbler is a small songbird in the New World warbler family, found in North and Central America. It breeds in parts of the northern and western United States and southern Canada, and migrates to winter in southern California and Texas, Mexico, and the north of Central America. It has a gray head and a green back, and its underparts are yellow and white.
LeConte's sparrow, also known as LeConte's bunting, is one of the smallest New World sparrow species in North America.
The genus Spizella is a group of American sparrows in the family Passerellidae.
Brewer's sparrow is a small, slim species of American sparrow in the family Passerellidae. This bird was named after the ornithologist Thomas Mayo Brewer.
Baird's junco is a species of junco, a group of small, grayish New World sparrows. It is endemic to the forests in the higher elevations of the Sierra de la Laguna mountain range of the southern Baja California peninsula in Baja California Sur, Mexico.
The boreal forest or taiga of the North American continent stretches through a majority of Canada and most of central Alaska, extending spottily into the beginning of the Rocky Mountain range in Northern Montana and into New England and the Adirondack Mountains of New York. This habitat extends as far north as the tree line and discontinues in mixed deciduous-coniferous forests to the south. The "taiga", as it is called there, of Eurasia occupies a similar range on those continents. Throughout the Northern Hemisphere, the boreal forest covers 2.3 million square miles, a larger area than the remaining Brazilian Amazon rain forest. Although it is largely forest, the boreal forests include a network of lakes, river valleys, wetlands, peat lands and semi-open tundra.
New World sparrows are a group of mainly New World passerine birds, forming the family Passerellidae. They are seed-eating birds with conical bills, brown or gray in color, and many species have distinctive head patterns.
