Life histories of North American woodpeckersBent, Arthur Cleveland
Science
Life histories of North American woodpeckers
Bent, Arthur Cleveland
Birds -- North America; Woodpeckers -- North America
_Plumages._--The young in their first plumage bear the general color
pattern of the adults with this important exception--the young male has
a dull crimson oval central crown patch. However, while the pattern is
identical with that of adult birds, the black is replaced by a dark
sepia merging at times into an aniline black, and the bluish gloss
evident on the crowns of the mature birds is lacking. Similarly, the
feathers of the cheek patch in both sexes lack the fine silky gloss and
texture that are later attained. The underparts show uniformly a buffy
or ochraceous wash everywhere, and the barring of the tail is more
pronounced. During this phase, the plumage is much softer and looser
than it subsequently becomes.
With the first molt, the red crown patch is lost.
It is the belief of the writer, without sufficient specimens properly
to verify it, that the cockades of the full adult male plumage are not
attained until at least the third molt. Without careful dissection
and sex determination of the immature birds, a fact notoriously
difficult to the average ornithologist, the young of both sexes, after
the crown patch is lost and the cockades have not appeared, would be
indistinguishable.
_Food._--The food, like that of most woodpeckers, consists primarily of
larvae of various wood-boring insects, although beetles and grubs of
other kinds as well as ants, grasshoppers, crickets, and caterpillars
are frequently taken. An interesting habit of the red-cockaded
woodpecker is that of going into the cornfields throughout the South
at the time when the corn is at the roasting-ear stage and when many
of the ears are infested with a worm that damages the grain to a very
considerable extent. This habit is reported by Billy Ward (1930), of
Timmonsville, S. C., and by Edward Dingle (1926), of Mount Pleasant, S.
C., who says, “The Red-cockaded Woodpecker (_Phrenopicus borealis_) is
very commonly found in cornfields during the time the corn is in the
ear; in fact, the bird spends a large part of its time at this season
in extracting the worms that bore into the ears of corn. I have often,
at short distance, watched them engaged in this valuable work.” They
also feed on pine mast, the small wild grape, pokeberries, and other
small wild fruit. I have never seen them in orchards or in fig trees,
where the red-headed woodpecker is frequently found feeding.
As far as is known, this species does not visit cultivated fields,
except as above referred to, or orchards and is not destructive to
fruit and deserves to be regarded as wholly beneficial. This statement
takes into account the fact that a number of observers say that they
will continue to bore into certain pines that they have selected for a
nesting site until the tree is killed. The fact is, however, that the
tree is diseased and unsound before the woodpecker begins to utilize it
and is already worthless for lumber, so that this species seems worthy
of complete protection.
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