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<\/a>Shaggy bark of shagbark hickory shelters many insects. \u00a9 Edie Parnum.\u00a0 Click to enlarge.<\/p><\/div>\n
where small insects and spiders, including their eggs and pupae live.\u00a0 Birds like Brown Creeper and White-breasted Nuthatch explore the trunks of trees to find their favorite foods.<\/p>\n
<\/a>Insects hide in loose scales of black cherry bark. \u00a9 Edie Parnum. Click to enlarge.<\/p><\/div>\n
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<\/a>Brown Creeper searches for insects in bark. Photo by The Bird Blogger, Wikimedia Commons. Click to enlarge.<\/p><\/div>\n
The Brown Creeper rarely visits bird feeders. Instead, this brown-streaked bird, camouflaged to blend into a tree trunk, feeds from bark. Starting at the bottom of thetrunk, the creeper climbs upward in a spiral, all the while examining the bark to find its tiny prey.\u00a0 Supported by a stiff tail held against the tree trunk, it probes with a thin, down-curved bill adapted to extract the nutritious morsels.<\/p>\n
<\/a>White-breasted nuthatch clings to tree trunks and branches probing for insects. Photo by Matt MacGillivray on Wikimedia Commons. Click to enlarge.<\/p><\/div>\n
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The White-breasted Nuthatch alsoscours tree bark for its food. This bird often faces downward, using a different perspective to find insects overlooked by the creeper and other birds. To keep from falling face-first, it has a backward facing toe with a strong, clasping claw. Its upturned bill is designed for extracting its prey from the bark. At feeders they will sometimes carry off seeds and nuts to store them in the crevices of bark for later consumption – hence the name \u201cnuthatch\u201d.<\/p>\n
An entire guild of insects and birds rely on bark.\u00a0 Adult insects and spiders, together with their eggs, larvae, and pupa, are adapted to life on and in the bark. In addition to the Brown Creeper and White-breasted Nuthatch, woodpeckers, chickadees, and titmice also take advantage of this bounty.<\/p>\n
<\/a>White oak. Bark of oaks hosts insects and their leaves host 557 caterpillar species. \u00a9 Edie Parnum. Click to enlarge.<\/p><\/div>\n
To host bark-loving insects, we should plant native trees such as oaks, birches, maples, hickories, pines, and cherries.\u00a0 Smaller native trees and shrubs like serviceberry, crabapple, dogwood, blueberries, and viburnums should be included, too. In just a few years these woody plants will develop bark where multiple insects will live. Of course, they will also produce leaves hosting the moth and butterfly caterpillars that birds, especially their young, require for their survival. These woody plants will develop additional life-giving foods like berries, buds, nuts, seeds, and nectar. As they grow, each year our native trees and shrubs will offer more biomass and hence foster greater ecological diversity.<\/p>\n
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By Edie Parnum The aptly named shagbark hickory has loose bark. Black cherry\u2019s bark has scales like burned potato chips.\u00a0 Other tree species have furrowed bark, too.\u00a0 All have crevices where small insects and spiders, including their eggs and pupae … Continue reading