American Crows (Corvus brachyrhynchos) abound in the US, although they stay only in the higher elevations in Arizona. These were recorded just North of Durango, Colorado, in October, 1997. Listen to the difference between the Northwestern Crow and the American Crow, which may or may not be the same species - my money is on two species.
Douglas Von Gausig (recordist; copyright holder), Naturesongs.com
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