GENERAL ORNITHOLOGICAL NOTES. 89 



the many nests I have seen of E. dlfficilis. Tliey were built 

 in the forked branches of small trees, which is the invariable 

 rule, while the nests of E. difjicilis are never found in such 

 situations. Occasionally a nest of E. dlfficilis is seen in the 

 top of a tree trunk, where large branches diverge, but it is 

 noticed that in such cases they occupy a depression in the 

 bark, never being supported by twigs at the sides like the 

 nests of E. pusillus. Mr. L. Zellner, of Los Angeles, writes 

 to me : 



"I have collected seven or eight nests of this species 

 \_E. pusillus] this season, in the early part of June. They 

 contained from three to four eggs each, and were all placed 

 in the forks of willows from four to eight feet from the 

 ground." 



The nests of E. hammondi and E. ohscii7nis are said to be 

 sometimes built in forks, but as their eggs are unmarked 

 there is no danger of confounding them with the eggs of 

 either E. difficilis or E. pusillus. Just how far it is possible 

 to identify the eggs of E. hammondi and E. obscurus from 

 the situation and construction of the nests and the size of 

 the eggs, must be learned from a large number of instances 

 obtained from different localities. 



An Omission fkom the A. 0. U. Kevised List. 



By W. W. Price. 



In the "Auk" (Vol. V., p. 425) appeared a record of 

 the capture of Xantus's becard (Platypsaris albiventris) 

 in the Huachuca Mountains, Southern Arizona, seven miles 

 north of the Mexican boundary, which has been overlooked 

 in the revision of the check list of North American birds. 



A day or two after it was taken the bird was sent to Mr. 

 Robert Eidgway for identification, and remained in the 

 Smithsonian Institution several months. The record seems 

 to be of some importance, as it is not only a species new to 



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