Field notes: Eastern United States return trip through Canada and Northwest United States, San Diego trip,1916, and second Eastern United States trip "via northwest", v4546
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Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Okanogan Landing, Oct. 12 of a Wilson Snipe. Brooks say Nelson's St. Michael breeding birds are Henderson breeding ground of Scolopaxea (Brooks think full species) and of griseus, unknown! Have just looked at Sooty Grouse. Brooks points out, and his material shows that the terminal light (gray) tail band is white constant and pale in Colorado birds, toward the north become variable - Tending to blacken out in richardsonii. Flemmingi he considers as extremely dubious of recognition. Series from around Okanagan includes black-ringed and black-berked as well as pale birds, the latter like Wyoming ones. "Swath and Tannmer have muddled things up terribly." Get "rubber mouse" (made in Japan for squeaking rps birds. A larger kind, squeals like a rabbit - calls up owls For class use - pick in a 5-cent store Brooks says the call of a small brings up any larger owl. This paying owl "tooting" brings up screech owl; latter bring up spotted owl or horned owl. The bigger owls prey upon the smaller ones - owls "control" owls of smaller caliber. In Brooks' view an abundance of horned owls spells scarcity of smaller owl and hawks too, especially when small mammals happen to be at low ebb.