Sparrows, also known as "little brown jobs", are one of the more numerous bird species in North America. They are at most times very hard to find but can sometimes be seen skulking in the grasses, marshes or undergrowth.
There are at least 35 types of sparrow species in North America. Species of these birds can generally be located in five areas of North America. There are 15 species of sparrows that can be found in most areas of North America, some more abundant and widespread than others. These are the American Tree Sparrow, Chipping Sparrow, Clay-colored Sparrow, Fox Sparrow, Harris's Sparrow, Le Conte's Sparrow, Lincoln's Sparrow, Nelson's Sparrow, Savannah Sparrow, Song Sparrow, Swamp Sparrow, Vesper Sparrow, White-crowned Sparrow, White-throated Sparrow and the House Sparrow, which is now a common bird that was first introduced to a New York City Central Park around 1850.
In Western North America there are two sparrow species, the Baird's Sparrow and Golden-crowned Sparrow.
There are six sparrow species most likely seen in the eastern states. They are the Bachman's Sparrow, Grasshopper Sparrow, Henslow's Sparrow, Saltmarsh Sharp-tailed Sparrow, Seaside Sparrow and the Field Sparrow.
The Brewer's Sparrow is more likely to be seen the Central States as well as the Eurasian Tree Sparrow, which was introduced to St. Louis, Missouri around 1870.
In the southern states and Northern Mexico, there are 10 sparrow species. They are the Black-chinned Sparrow, Black-throated Sparrow, Botteri's Sparrow, Cassin's Sparrow, Bell's Sparrow, Five-striped Sparrow, Lark Sparrow, Olive Sparrow, Rufus-crowned Sparrow, Rufus-winged Sparrow and the Sage Sparrow .