Life histories of North American woodpeckersBent, Arthur Cleveland
Science
Life histories of North American woodpeckers
Bent, Arthur Cleveland
Birds -- North America; Woodpeckers -- North America
Roderick MacFarlane (1908) writes: “On the 6th of May, 1885, Mr. Reid
discovered a nest in a hole in a dry standing poplar tree near Fort
Providence. There were eight eggs therein, and the parent was seen
and shot. * * * At Fort St. James, Stuart’s Lake, on the 25th of May,
1889, a native hunter found a nest holding four fresh eggs in a similar
position. Both parents in this instance were also observed near by and
shot. On 4th June, in the same locality, an Indian girl brought us
four eggs. * * * The nest was found in a hole in a dry pine tree, at a
height of several feet above the ground.”
Henry Mousley (1916) says that near Hatley, Quebec, “as a rule the nest
hole is somewhat high up but on one occasion I found one which was only
three feet above the ground in a birch stub, containing four eggs, the
entrance hole being two inches in diameter, extreme depth eleven inches
and average width two and three quarters inches.”
P. B. Philipp and B. S. Bowdish (1919), referring to northern New
Brunswick, say: “A nest with young was found in a dead maple stub in
a burnt barren, on May 29, 1917. On May 30 of the same year another
nest about fifteen feet up in a dead maple stub in a similar situation,
contained four eggs, very slightly incubated. On June 9, 1917, a third
nest in a cedar telephone pole beside a public road was examined. It
was at a height of about nine feet; cavity 14½ inches deep; entrance 2⅛
inches in height by 2¼ inches in width. This nest contained four nearly
fresh eggs.”
_Eggs._--The northern hairy woodpecker lays three to five eggs; the
eight eggs mentioned above by MacFarlane may have been the product
of two females or eggs of the boreal flicker; in the latter case the
collector may have shot the wrong parent. The eggs are like those
of the eastern hairy woodpecker but average slightly larger. The
measurements of 41 eggs average 25.39 by 20.10 millimeters; the eggs
showing the four extremes measure =28.45= by 22.10, 27.43 by =22.35=,
and =21.5= by =16.6= millimeters.
The plumage changes, food, behavior, voice, and other habits apparently
do not differ materially from those of its southern relative. It is
said to be a permanent resident throughout its range, but there is
probably some southward migration or wandering from at least the
northern portion of its range and perhaps from the southern parts also.
That some individuals remain far north in winter is shown by the fact
that the Fort Simpson specimen was taken on December 29, 1860. The
Weydemeyers (1928) say that during winter, in northwestern Montana,
“this woodpecker is commonly found in mixed broad-leaf and conifer
associations along streams, but it is most abundant at that season in
the larch woods of the valleys.”
DRYOBATES VILLOSUS AUDUBONI (Swainson)
SOUTHERN HAIRY WOODPECKER
PLATE 5
HABITS
Public-domain text, read in full here on John Shaqi.
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