1 May 1881, Inezon Ariz. Legs brown. Insects. Would have commenced laying in about two weeks. Wren not a sharp clink Song heard yesterday for the first time. It is difficult to describe. It is rapid and about the middle raises to a higher key and subsides to nearly the form, occupying perhaps two seconds of time. I have found this species common along the Colorado and Gila rivers, and saw one pair on the San Pedro, and this pair here. They appear to be restricted to the vicinity of streams near in thick brush, though they are present less more than annual in this genus. I have seen them hunting insects in the bark of trees in a manner similar to