Life histories of North American woodpeckersBent, Arthur Cleveland
Science
Life histories of North American woodpeckers
Bent, Arthur Cleveland
Birds -- North America; Woodpeckers -- North America
“The young sapsuckers left the nest on the seventh of July, and clung
to the nest tree for three days. Here they were initiated by both
parents into the mysteries of sap-sucking. A hole having been bored
in front of each, with grotesque earnestness the mother watched the
attempt to drink the sweet syrup. During this time both insects and
berries were brought to them by the adults, in one hour one youngster
devouring twelve insects that looked like dragonflies.”
Mrs. Florence M. Bailey (1902) writes:
The last week in July at Donner Lake we found a family
of dull colored young going about with their mother, a
handsome old bird with dark red head and breast. They flew
around in a poplar grove for a while, and then gathered in
a clump of willows, where four young clung to the branches
and devoted themselves to eating sap. The old bird flew
about among them and seemingly cut and scraped off the bark
for them, at the same time apparently trying to teach them
to eat the sap for themselves; for though she would feed
them at other times she refused to feed them there, and
apparently watched carefully to see if they knew enough to
drink the sap. When the meal was finally over and the birds
had flown, we examined the branch and found that lengthwise
strips of bark had been cut off, leaving narrow strips like
fiddle-strings between. At the freshly cut places the sap
exuded as sweet as sugar, ready for the birds to suck.
_Plumages._--Like other young sapsuckers, the young of this species
are hatched naked, but the juvenal plumage is acquired before they
leave the nest. In the juvenal plumage, in which the sexes are alike,
the wings and tail are essentially as in the adult; the head and neck,
except for the white stripe below the eye, are dark grayish sooty,
though the forehead and crown are usually more or less tinged with dull
red; the sides and flanks are more or less barred with dull gray and
white; and the abdomen is dull yellowish white.
By the last of July, or first of August, the molt into the first winter
plumage begins, with an increasing amount of red coming in on the
crown, throat, and breast; at the same time the yellow of the abdomen
becomes brighter. This molt continues through fall and is often not
complete until November or later. The young bird is now much like the
adult. In fall birds, both adult and young, the red of the head and
breast, is much duller than in spring, “Brazil red” to “dragon’s blood
red” in the fall, and “scarlet red” or bright “scarlet” in the late
winter and spring; this is due, of course, to the wearing away of the
tips of the feathers; in early summer, just before molting, the red is
decidedly brilliant.
Adults have a complete annual molt, beginning sometimes in July and
lasting through August or later.
Public-domain text, read in full here on John Shaqi.
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