SYLVICOLID.E — THE WARBLERS. 319 



depth one and a half inches. He describes the eggs, which were four, as 

 white, spotted with reddi.sh and brown dots, tlie markings being princijially 

 around the krger end, forming a circle, leaving the extremity plain. 



In this instance the parents allowed much imeasiness at the approach of 

 intruders, moving about among the twigs, snapping their bills, and uttering 

 a plaintive note. In Newfoundland these birds had already begun to mi- 

 crate on the 20th of Aujiust. He met witli them in considerable nundicrs 

 in Northern Maine in October, 18o2. Mr. Turnbull mentions it as a ratiicr 

 abundant bird of Eastern Pennsylvania, appearing there early in May, in 

 transitu, and again in October. 



Mr. T. M. Trippe has observed this species at Orange, N. J., from the 19tli 

 to the 30th of JMay. It is said to keep low down in the trees, and is fond 

 of haunting thickets and open brush fields. Occasionally he has heard it 

 utter a loud chattering song, which it repeats at short intervals. 



A nest of this species from Fort Yukon (Smith. Coll., 13,346), obtained 

 JMay 20, by Mr. McDougal, contained four eggs. These varied from .60 to 

 .63 of an incli in length, and from .45 to .4'J in breadth. They were obovate 

 in sliape, their ground-color was a pure white ; this was finely sprinkled 

 round the larger end with brownish-red and lilac. No mention is made of 

 the position of the nest, but it is pr(i)jal)le this bird builds on the ground. 



Myiodioctes pvisillus, var. pileolatus, Eidgway. b'/</. 



Miiliif.iUa piholnta, Pall.\s, Zobg. Rosso Asiat. 1, 1831, 497 (Russian AniKrica). Mijiodioc- 

 ks pusillus, Vdv. pilcolcifa, Ridgw.w, Ri'ijort IT. S. Geol. ExpL lOtli I'ar. Mijiodioctcs 

 piisillus, AucT. (all citations froiu Pacilic coast of North and Middle America). — Lor.D, 

 I'r. R. Art. Inst. Woolw. IV, 1864, 115 (Hi: Col.). — D.iLL & B.\nnistek (Alaska). — 

 Cooper, Orn. Cal. I, 1870, 101. 



Sp. Cii.\r. Similar to var. pusillus, Iml mucli riclier yellow, scarcely tinged with olive 

 laterally, and deepened into an almost orange shade on the front and chin. Above much 

 brighter and more yellowish olive-green. The black pileum with a brighter steel-blue 

 gloss. Bill much narrower, and deep, light brown above, instead of nearly black. Meas- 

 ures (4,222 (J, San Francisco, Cal.), wing, 2.15; tail, 2.00. 



Hab. Pacific coast region of North America, from Kodiak (Alaska) ; south through 

 Western Mexico (and Lower California) to Costa Rica. 



This is an appreciably different race from that inhabiting the eastern 

 division of the continent ; the differences, tested by a large series of speci- 

 mens, being very constant. 



A Costa-Rican specimen before me is almost exactly like specimens from 

 California. 



Habits. The remarlcs in the preceding article relative to specimens from 

 the Pacific coast belong to this variety. 



