File:Picoides villosus (hairy woodpecker) (Newark, Ohio, USA).jpg

English: Picoides villosus (Linnaeus, 1766) - male hairy woodpecker in Newark, Ohio, USA. (photo by Mary Ellen St. John)

The hairy woodpecker is distributed throughout most of North America, except for parts of the Desert Southwest, most of Texas, far-northern Canada, northern Alaska, and parts of the western Cordillera. It is similar in appearance to the downy woodpecker. Downies have smaller body sizes and smaller beaks, relative to head size. Hairies have larger bodies and relatively larger, longer beaks.

Classification: Animalia, Chordata, Vertebrata, Aves, Piciformes, Picidae

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Birds are small to large, warm-blooded, egg-laying, feathered, bipedal vertebrates capable of powered flight (although some are secondarily flightless). Many scientists characterize birds as dinosaurs, but this is consequence of the physical structure of evolutionary diagrams. Birds aren’t dinosaurs. They’re birds. The logic & rationale that some use to justify statements such as “birds are dinosaurs” is the same logic & rationale that results in saying “vertebrates are echinoderms”. Well, no one says the latter. No one should say the former, either.

However, birds are evolutionarily derived from theropod dinosaurs. Birds first appeared in the Triassic or Jurassic, depending on which avian paleontologist you ask. They inhabit a wide variety of terrestrial and surface marine environments, and exhibit considerable variation in behaviors and diets.

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See info. at:

en.wikipedia.org/wiki/Hairy_woodpecker