Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
Richardson 1937
Norse Crook Rd., Warner Rts., Lake C., Oregon
June 11, 1937 - This region seems to be one in which natural conditions and balances are almost unaltered, evidenced in part by the variety and abundance of birds. Logging has not been done and cattle appear not to have been in the region. Golden Eagles, day predators, are present and Saw-whet Owls, night predators, also Steller Jays are present in normal (perhaps) numbers. Almost all the woodpeckers that might be expected, save the Pileated and possibly the American 3-toed, have been seen. This may be due to variety of habitat (including large Yellow Pine stands) and also to optimum food conditions.
Breeding status of birds, as far as known, may be summarized:
Eggs : Jays, Green-tailed Towhee, Townsend Solitaire
Young: Hairy Woodpecker, (very few)
Probably many other species have eggs but few young - the young being more easily found as a rule! It seems true that any valid generalization on time of nesting in life zones, must be based on rather complete information, perhaps not possible on such a collecting trip as this.