By Diana Young
Geographic Range
Resident through forested North America from Nova Scotia, New Brunswick, s. Quebec, and central Ontario south to s. Florida, and west to forested river bottoms extending into the Great Plains in e. Texas and se. Oklahoma. The winter range is also the same. A permanent resident of deciduous or coniferous forests in southern Canada and in the western, midwestern, and eastern United States.
Biogeographic Regions:
atlantic ocean
(native
).
Habitat
Coniferous or deciduous forest. Prefers to nest in mesic areas, close to streams; selects stands with greatest basal area, greatest density of stems, and highest crown canopy. Typically roost in hollow trees with multiple entrances.
Terrestrial Biomes:
forest
.
Physical Description
The Pileated Woodpecker is the largest woodpecker found in most of North America. Only the possibly extirpated Ivory-billed Woodpecker (Campephilus principalis) in the southeastern United States and Cuba and the Imperial Woodpecker (Campephilus imperialis) of western Mexico are larger. Dryocopus pileatus is best recognized by its large, dull black body and red crest. Because of its size and chisel-shaped bill, this woodpecker is particularly adept at excavating, and it uses this ability to construct nests and roost cavities and to find food.
Some key physical features:
endothermic
; bilateral symmetry
.
Reproduction
Dryocopus pileatus is oviparous, its incubation period is approximately 12-14 days. Both parents incubate eggs alternately during the day; the male incubates at night. The eggs are attended 99% of the time. Kilham (1979) reported that eggs were unattended for up to 20 minutes in the first few days; attended nearly 100% of the time after that. A clutch size of 4 is most common in this woodpecker.
Key reproductive features:
iteroparous
; gonochoric/gonochoristic/dioecious (sexes separate); sexual
; oviparous
.
Behavior
Adapted primarily for climbing on vertical surfaces; occasionally hops on the ground. Awkward on small branches and vines when reaching for fruit. A strong flyer with slightly undulating strong flight; flight is rather slow but vigorous and direct. Sleeps or roosts in cavity at night. During conflict with conspecies, much chasing, calling, striking with wings, and jabbing with its bill. Drumming usually occurs atop a dead tree that resonates sound; most frequent in the morining, but can occur through the day and increases in frequency during early spring as courtship activities begin. Drumming is used to proclaim a territory.
Key behaviors:
flies; motile
.
Food Habits
This woodpecker feeds on insects, primarily carpenter ants and woodboring beetle larvae; also wild fruits and nuts. It pries off long slivers of wood to expose ant galleries. The Pileated Woodpecker uses its long, extensible, pointed tongue with barbs and sticky saliva to catch and extract ants from tunnels.
Economic Importance for Humans: Negative
Dryocopus pileatus hollows out nests 8 inches wide and 2 feet deep. Homeowners and utility companies are often concerned about damage to homes and trees. However, there are many products now on the market to prevent or repair this damage. Also, providing nesting boxes or other nesting habitat for the birds may be a successful strategy (Texas Partners in Flight, 2000). It is illegal to harm or remove the birds without a permit.
Economic Importance for Humans: Positive
As a large, non-migratory insectivore, the pileated woodpecker may provide an important role in controlling insect outbreaks, particularly those of tree beetles. Also, this woodpecker may be a keystone species because its nest excavations provide habitat for many other species (Aubrey and Raley, 2002).
Conservation Status
IUCN Red List: [link]:
Least Concern.
US Migratory Bird Act: [link]:
Protected.
US Federal List: [link]:
No special status.
CITES: [link]:
No special status.
State of Michigan List: [link]:
No special status.
Pileated woodpeckers have a large range and large population size, so they are not considered threatened or endangered. They are protected by the U.S. Migratory Bird Act.
Contributors
Diana Young (author), University of Michigan.
