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A big, dashing bird with a flaming crest, the largest woodpecker in North America (except the Ivory-bill, which is almost certainly extinct). Excavating deep into rotten wood to get at the nests of carpenter ants, the Pileated leaves characteristic rectangular holes in dead trees. This species became rare in eastern North America with clearing of forests in centuries past, but has gradually increased in numbers again since about the beginning of the 20th century. Where unmolested, it even lives in parks and woodlots around the edges of large cities.

This brown woodpecker flashes bright colors under the wings and tail when it flies. Its ringing calls and short bursts of drumming can be heard in spring almost throughout North America. Two very different-looking forms -- Yellow-shafted Flicker in the east and north, and Red-shafted Flicker in the west -- were once considered separate species. They interbreed wherever their ranges come in contact. On the western Great Plains, there is a broad zone where all the flickers are intergrades between Red-shafted and Yellow-shafted.

This striking and unmistakable bird was a favorite of early ornithologists such as Alexander Wilson and Ô¼ÅÚÊÓƵ. Often conspicuous because of its strong pattern, harsh calls, and active behavior in semi-open country, it tends to occur in small colonies. Although it migrates only short distances, little groups of migrants may be noticeable in early fall and late spring. Once a very common bird in eastern North America, the Red-headed Woodpecker is now uncommon and local in many regions.

Primarily a bird of the southeast, where its rolling calls are familiar sounds in swamps and riverside woods. Omnivorous and adaptable, this woodpecker has also adjusted to life in suburbs and city parks, and in recent years it has been expanding its range to the north. Despite the name, the red on the belly is not often visible in the field.

The smallest woodpecker in North America, common and widespread, although it avoids the arid southwest. In the east this is the most familiar member of the family, readily entering towns and city parks, coming to backyard bird feeders. Its small size makes it versatile, and it may forage on weed stalks as well as in large trees. In winter it often joins roving mixed flocks of chickadees, nuthatches, and other birds in the woods.

This species and the Downy Woodpecker are remarkably similar in pattern, differing mainly in size and bill shape. They often occur together, but the Hairy, a larger bird, requires larger trees; it is usually less common, especially in the east, and less likely to show up in suburbs and city parks. In its feeding it does more pounding and excavating in trees than most smaller woodpeckers, consuming large numbers of wood-boring insects.

A clown-faced western woodpecker with a complicated social structure, living in small colonies. Best known for its habit of hoarding acorns: the birds drill small holes in a dead snag, then harvest acorns in fall and store them in these holes, to be eaten during winter. Such a "granary tree" may be used for generations and may be riddled with up to 50,000 holes. Nesting is a group activity, with several adults (up to 12 or more) taking part in incubating the eggs and feeding the young in a single nest.

Although its name sounds like a cartoonist's invention, the Yellow-bellied Sapsucker does exist. This species is common in the north and east, and is replaced by close relatives in the west. Quiet in winter, it becomes noisy in spring, with cat-like calls and staccato drumming.