1914] GrinneU: Mammals and Birds of tht Colorado Valley 193 



splotchy rather than punctulate. The eggs are rounded-ovate and 

 measure in millimeters 14.0 by 11.7, 14.6 by 11.8, and 14.0 by 11.6. 

 Only the female parent was observed in the vicinity of the nest and, 

 as noted by Gilman. there was a notable lack of expressed anxiety. 

 The bird merely remained among' distant mesquites, uttering an occa- 

 sional faint, one-syllabled alarm note. 



Twenty-five specimens of this warbler were obtained, nos. 13579- 

 13603. 



The Lucy warbler was originally discovered at Fort Mohave, which 

 is on the Arizona side of the river. Its describer. J. G. Cooper (1861. 

 p. 120), remarks as follows: "This bird was common at Fort Mojave. 

 near Lat. 35°, in the Colorado Valley, where it arrived about March 

 25th. and remained until I left there, the twenty-eighth of May. I saw 

 none along- the Mojave river, on the route westward. I collected five 

 male specimens and one female. ' ' 



Two of Cooper's specimens are in the Museum collection: female, 

 uo. 4266, April 5, 1S61 ; male, no. 4267, April 11, 1861. These may 

 with propriety be considered co-types, at least. Although no single 

 specimen had been designated as type, Ridgway (1902, p. 474) indicates 

 that a specimen which he considers the type is in the United States 

 National Museum ; this is probably one of the five males referred to 

 by Cooper. Both our specimens have the original label, on faded blue 

 note-paper, giving full data, entirely in Cooper's own handwriting. 

 The female has "lueiae, n.s. Cooper" in one corner in the same faded 

 ink as on the rest of the label, except that both specimens have 

 "lueiae, J. G. C." interlined in blacker ink, just beneath the original 

 "Helminthophaga," evidently inscribed by Cooper at some later time. 



Vermivora ruficapilla gutturalis (Ridgway) 

 Calaveras Warbler 



First noted April 7 to 9. on the Arizona side of the river, ten 

 miles below Cibola. Here they were not uncommon in the upper foliage 

 of blossoming willows. Next observed on the opposite side, twenty 

 miles north of Picacho, April 11, with similar mode of occurrence; 

 then five miles above Laguna, April 25, and at Potholes, April 29. 

 Here, and four miles south of Potholes, up to May 2, this was one of 

 the commonest warblers. One was seen five miles northeast of Yuma, 

 May 3 ; and in the vicinity of Pilot Knob. May 6 to 15, a few were 



