Red-headed Woodpecker |
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| Scientific name: |
Melanerpes erythrocephalus |
| Taxonomic group: |
Birds |
| Range: |
SK MB ON QC |
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| Status under
SARA*: |
Special Concern, on Schedule
3 |
Last
COSEWIC** designation: |
Special Concern (April 1996) |
*SARA: The
Species at Risk Act **COSEWIC: The Committee on the
Status of Endangered Wildlife in
Canada |
Quick Links: | Photo
| Description
| Distribution
and Population | Habitat
| Biology
| Threats
| Protection
| References
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Description The head and neck
of the Red-headed Woodpecker are crimson in adulthood,
and grey when the bird is young. The back and wing
coverts (feathers covering the base of its
flight-feathers) are black. Secondary wing feathers are
white. The adults display conspicuous white wing patches
in flight. Black lines run through these patches on the
young. The bird can be very aggressive at feeding
stations, driving off jays with spectacular power dives.
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Approximate
range - not for legal use
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Distribution and Population The
bird occurs exclusively in North America. It breeds from
southern Canada south to Florida. Facing a food
shortage, the species will migrate to the southern
two-thirds of its breeding range or, on rare occasion,
to the north. In Canada, it breeds in southern
Saskatchewan, southern Manitoba, southern Ontario and,
on rare occasion, in southwestern Quebec. It no longer
breeds in southern New Brunswick. Occasionally it visits
southern British Columbia, southern Alberta, central
Saskatchewan, New Brunswick and Nova Scotia. Its winter
distribution is largely determined by food availability.
The Red-headed Woodpecker is not common anywhere
in Canada except, perhaps, in extreme parts of southern
Ontario. It is a rare but widespread summer resident in
Ontario, ranging north to Kenora, Wawa and Sudbury.
Ontario populations still occupy most of their original
range. The population size of the woodpeckers in Ontario
plummeted from 2,000 to 10,000 pairs in the early- to
mid-1980s, and from 3,400 to 679 pairs in 1994. The
Saskatchewan population is estimated at 10 to 100
breeding pairs. In Manitoba the breeding population is
1,000 to 10,000 pairs; a decline since the 1980s. Only
three of 12 known breeding sites in Quebec were used
from 1990 to 1994, and only one of these was used in
consecutive years, making the bird a rare, infrequent
and slowly declining breeder with a very localized
distribution in that province.
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Habitat The species is found in
thinly treed deciduous forests, woodland and field
edges, but also inhabits areas with dead trees, urban
parks, farmyards and marsh. It also occurs along rivers
and roads with a few large trees. It prefers timber
stands treated with herbicides or burned, savanna-like
grasslands with forest edges and scattered trees. The
species likes open areas with snags and lush herbaceous
ground cover, and does not fancy woods with closed
canopies. Historically, its habitat availability
increased at the onset of European settlement. The
habitat then declined steadily due to forest destruction
and dead-tree removal for firewood and esthetics.
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Biology Males choose nest
sites. They prefer cavities in dead or partially dead
deciduous tree, but will nest in living trees, hollow
posts and utility poles. Adults often return to nest in
the same cavity, the same tree or the immediate area in
subsequent years. The species is monogamous. Females lay
four to seven eggs between May and July in Canada. Both
parents brood the eggs during the 12- to 13-day
incubation period and later tend the hatchlings. The
young fledge 27 to 30 days after birth. They follow the
parents until chased away about 25 days later. Adults
raise two broods per year in the southern parts of the
species' range, including Ontario. They raise one brood
elsewhere, in spite of persistent re-nesting. This
species catches insects in flight more than most other
woodpecker species do, and supplements its diet with
fruit, nuts, and even eggs of other birds.
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Threats The species is easily
disturbed by human activities. Habitat loss is
attributable to logging, firewood cutting, agriculture
and dead-tree removal for esthetic purposes. As well,
competition from European Starlings for nesting sites,
and increased road traffic which leads to birds
colliding with cars while stooping for insects along
roads, are factors that affect the bird's population.
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Protection Species that were
designated at risk by COSEWIC prior to October 1999 must
be reassessed against revised criteria before they can
be considered for addition to Schedule 1 of the Species at Risk Act (SARA). To find
out when re-assessment of this species is anticipated,
please consult the COSEWIC
web site.
The Red-headed Woodpecker, its
nests and eggs are protected in Canada and the United
States under legislation implementing the 1916 Migratory
Birds Convention.
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References - Page, Annette M.
1996. Status Report on the RED-HEADED WOODPECKER,
Melanerpes erythrocephalus, in Canada. Committee on the
Status of Endangered Wildlife in Canada. 55 pp.
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