K Dixon 1949 Parus inornatus April 27. 8 mi. S Whiteriver, 6100 ft, Navajo Co, Arizona low hill NE of our camp along dry stream course. Over juniper - pinon with some blue ? oaks with yellowing leaves. About 10:30; cloudy to N & W, strato-cumulus with wind from N 10 mph, gusty. Perhaps raining further north. I happened upon a lone Plain Titmouse in a juniper and followed this bird from tree to tree as it kept ahead of me. Bird gave no calls for some time, then, probably alarmed at my persistence, gave a low rattling pruh-dub-dub-dut somewhat like Nuttall Woodpecker but lower pitched (a note never heard in coastal P. inornatus). Bird kept this "scold" up for some time and I ceased following. Presently I heard a dry peta-peta-peta similar to Bridled Titmouse. After repeating this song, the bird gave a whistled peta-you-peta-you not as melodious as other titmouse songs (coastal) I was unable to collect this individual. Half an hour later somewhere to N but perhaps in same territory I heard call tee-dee-dee purra-purra-purra the latter 3 phrases an insect like trill. Answered dub-dub-dut apparently from nest (given several times) or moving in a small oak, position not ascertained. Sawed shortly afterward at 11:17, there was a more pronounced chatter (? off nest ?). Silence until 11:28 when I was looking into tree where I had been and saw pair in pinon 60 ft to S. I moved back to vantage point and heard call pruh-dub-dit from E at 11:30. No further notes by 12:00 so I left. I checked all trees in the