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78 THE CONDOR I VOL. V Falco mexicanus. Prairie Falcon. Saw one at Twenty-nine Palms and an- other on Providence Mountains. Falco sparverius deserticolus. Desert Sparrow Hawk. Unexpectedly rare. Saw a few on the Mobave Desert and one on Providence Mountains. The only one noted in Arizona was in the Colorado River bottoms above Ehrenberg. Pandion haliaetus carolinensis. American Osprey. Saw the renmins of one near Ehrenberg. Bubo virginianus pacificus. Pacific Horned Owl. Mr. Brandegee saw two in the Providence Mountains. I heard them in the Hualapai Mountains and near Ehrenberg. (To be concluded.) A Strange Nesting Site of Calypte anna. .! * R. W. Lee Chambers of Santa Monica has sent us photographs showing a very strange nest- ing site of the Anna hum- mingbird. Mr. Chambers writes: "I aln enclosing a couple ot photographs of an Anna hummingbird's nest built on a telegraph pole in the busiest street oi Santa Mon- ica. It is built over a nest of last year. and the illustra- tions show its situation. The construction is as usual: i.e., spider-web chiefly, covered on the outside with bits of moss, and lined with an un- usual amount of white feath- ers. In fact the nest was so filled with feathers that I could hardly take the eggs out for fear of crushing them. The incubation was well advanced; date March 3 x, x9o3."