American Tree Sparrow
American Tree Sparrow: Medium, gray-brown sparrow, black and rufous-brown streaks on back, wings. Crown, eyestripes, flanks are rufous-brown, contrasting with gray face. Pale gray breast with dark central spot, rufous-brown sides. Upper mandible is dark gray, lower mandible is yellow.
Range and Habitat
American Tree Sparrow: More common in the western U.S. Preferred habitat includes moist deciduous woodlands and willow thickets along streams.
Despite their name, female American Tree Sparrows build their nests on the ground.
One study shows that they watch for predators out of their left eyes.
When the ground is covered with snow, they will beat tall weeds with their wings and then eat the seeds that have fallen on the snow.
A group of American Tree Sparrows are collectively known as a "grove" of sparrows.
The American Tree Sparrow has a particularly large range, reaching up to 5 million square kilometers around the world. This species of bird is native to the United States and Canada. It has been seen in Saint Pierre as well. The population of the American Tree Sparrow is around 26 million individual birds worldwide. The concern regarding possible population decline for this bird is not grave in terms of possible decline. It has been given an evaluation rating of Least Concern, which is downgraded from the Lower Risk evaluation in 2000.