Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
T. Richardson 1937
Hairy Woodpecker (Dryobates villosus)
June 21, 1937 - 3 mi. W Paulina Lake, Deschutes Co., Oregon.
This seems to be the only species of woodpecker, excepting Williamson's Sapsuckers in this whole region. The presence of fine and varied stands of trees seems to make this inexplicable and we must look for a more subtle reason for the paucity of woodpeckers. Food supply seems most likely. The presence of Hairy Woodpeckers rather than other woodpeckers (excepting such typical ones as flickers & sapsuckers) may indicate their generalized condition and hence greater adaptability to conditions not quite optimum for woodpeckers in general. It may indicate, instead or as well, a more "arrogant" nature in establishing territorial rights.
Both Hairy nests have well developed young - in fact in one nest at least one young has left the nest cavity. This youngster was found on this cold rainy morning, crouched under a dead log with his head buried in his back - except when he uttered squeals for food. This indicates some ability of young to find needed protection.