Woodpeckers - Instinctive Behavior, Physical Adaptions, Woodpeckers In North America, Woodpeckers And Humans, Status
family piculets birds
Woodpeckers are birds in the family Picidae, which includes about 200 species of true woodpeckers, wrynecks, as well as the diminutive piculets. Woodpeckers are widespread in the world's forested areas, occurring everywhere but Australia, New Zealand, New Guinea, Madagascar, and Antarctica. Birds in the woodpecker family range in size from the relatively enormous imperial woodpecker (Campephilus imperialis) of Mexico, with a body length of 21.7 in (55 cm) and weight of 1.1 lb (550 g), to tropical piculets only 3.2 in (8 cm) long.
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Woodpeckers have a number of adaptations that permit the vigorous hammering of wood without damaging the bird. Their skull is thick-walled and the brain is cushioned by absorbent tissue, which helps withstand the physical shocks of their head blows. The tongue of the woodpecker is long, barbed, and sticky to help extract insects from crevices, and the organ is supported by an extended hyoid bone a…
About 21 species of woodpeckers regularly breed in North America. The largest species is the 18 in (46 cm) American ivory-billed woodpecker (Campephilus principalis) of the southeastern United States, although this species is rare and may even be extinct. The pileated woodpecker (Dryocopus pileatus) is another large species, with a body length of 15 in (38 cm). This species is still widespread, al…
Woodpeckers have sometimes been regarded as pests. Sapsuckers occasionally cause damage when their horizontal rows of drillings girdle trees and prevent the free flow of sap and water. Pileated woodpeckers can damage wooden utility poles, sometimes requiring their premature replacement. Overall, woodpeckers provide more benefit than detriment to humans because they feed on injurious insects, provi…
Bent, A.C. Life History of North American Woodpeckers (Deluxe Edition). Indiana University Press, 1992. Brooke, M., and T. Birkhead. The Cambridge Encyclopedia of Ornithology. Cambridge, UK: Cambridge University Press,1991. Ehrlich, Paul R., David S. Dobkin, and Darryl Wheye. The Birder's Handbook. New York: Simon & Schuster Inc., 1988. Forshaw, Joseph. Encyclopedia of Birds. New Yor…
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