Cavity-Nesting Birds of North American Forests: Agriculture Handbook 511Scott, Virgil E.
Science
Cavity-Nesting Birds of North American Forests: Agriculture Handbook 511
Scott, Virgil E.
Birds -- Nests; Birds -- North America; Cavity-nesting birds -- North America; Forest birds -- North America
Food: There is little information on the food of these birds, but
apparently both animal and vegetable matter are included in the diet.
Bent (1940) reported on stomach contents of two birds. One contained
adult and larvae of moths and butterflies; the other contained 68
percent insects and 32 percent fruits. Insect food included
grasshoppers, praying mantids, stink bugs, leaf beetles, and larvae of
hawk moth, sawfly, and miscellaneous other insects. Vegetable food
consisted of fruits of cissus and red pepper and undetermined plant
fiber.
Common flicker
_Colaptes auratus_
L 10½″
[Illustration]
Habitat: Flickers are commonly found near large trees in open woodlands,
fields, and meadows throughout North America. In winter, they
occasionally seek shelter in coniferous woods or swamps. Previously
three species were recognized: the yellow-shafted of the East, the
red-shafted of the West, and the gilded of the southwestern desert.
These are now considered a single species.
Nest: Flickers prefer to nest in open country or in lightly wooded
suburban areas where park-like situations are plentiful (Bent 1939).
Conner et al. (1975) reported that flickers usually nest in edge
habitats and, in extensive forested areas, nest only in or around
openings. Flickers excavate nest holes with a 2.75-inch entrance hole
diameter in dead trees or dead limbs of many species of trees including
aspen, cottonwood, oak, willow, sycamore, pine, and juniper. Nests are
sometimes as high as 100 feet but usually between 10 and 30 feet (Scott
and Patton 1975, Lawrence 1967).
Food: Sixty percent of common flicker food is animal matter. Of this, 75
percent is ants, more than taken by any other North American bird. Some
flicker stomachs have contained over 2,000 ants. The rest of the insect
material includes beetles, wasps, caterpillars, grubs, and crickets. The
vegetable portion of the diet includes weed seeds, cultivated grain, and
the fruit of wild shrubs and trees (Bent 1939, Forbush and May 1939).
Pileated Woodpecker
_Dryocopus pileatus_
L 15″
[Illustration]
Habitat: Forests of heavy timber and secondary growth consisting of
mixed deciduous and coniferous trees are the preferred year-round
habitat for pileated woodpeckers. These large woodpeckers have become
less abundant over much of their former range where extensive
agriculture or logging practices have eliminated large tracts of old
growth forests. In the Ozarks, they are plentiful wherever extensive
forests remain, preferring areas where past cutting practices (early
1900’s) have left scattered large cull trees throughout.
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