July, 1911 
WINTER BIRDS OF THE SALTON SEA REGION 
137 
.54. Lanius ludovicianus excubitorides. White-rumped Shrike. In consider- 
ably less numbers than in winter. A nest was found March 21 with three young 
just able to fly and another the 27th with five pipped eggs, only five feet from the 
ground in an “inkweed” bush. 
55. Vireo vicinior. Gray Vireo. A specimen collected March 26 in the mes- 
quites, and another heard the same day. 
56. Vermivora luciae. Lucy Warbler. An adult female taken in a mesquite 
over the tent on March 29. 
57. Vermivora celata lutescens. Lutescent Warbler. Only one seen, an adult 
female collected on March 28. 
58. Dendroica auduboni. Audubon Warbler. Abundant everywhere until 
March 25. After this they decreased rapidly in numbers and the last one was .seen 
March 29. 
59. Dendroica nigrescens« Black-throated Gray Warbler. On March 21 
eight passed through and one was taken. No others were noted. 
60. Geothlypis trichas occidentalis. Western Yellowthroat. In breeding con- 
dition but no nests found. Common. 
61. Wilsonia pusilla chryseola. Golden Pileolated Warbler. Appeared 
March 22 (two birds seen), and were common from then until we left. 
62. Anthus rubescens. Pipit. A single bird seen on the alkali flat near Sal- 
ton Sea March 19, and one on the 22nd. 
63. Oreoscoptes montanus. Sage Thrasher. Mr. Wright took a pair the even- 
ing of March 22 in the brush near a canal. Single birds frequently seen from then on. 
64. Mimus polyglottos leucopterus. Western Mockingbird. A pair were 
building in a dead mesquite near camp and had a half completed nest on March 31. 
The bulk of those which were so common here in January were probably winter 
visitants only. 
65. Toxostoma crissale. Crissal Thrasher. Fairly common but shy. Several 
nearly grown young with tail feathers about three inches long were taken, and were 
from two different nests. Mr. Wright found a nest in a clump of mistletoe March 
21 which contained one egg evidently deserted. The adults were already in worn, 
ragged plumage — what they must look like by July! 
66. Heleodytes brunneicapillus couesi. Cactus Wren. Two pairs with nests, 
the contents of which could not be ascertained, in the mesquites near camp. 
67. Thryomanes bewicki charienturus. San Diego Wren. Not common. 
One of the two noted was collected and is this form. 
68. Auriparus flaviceps. Verdin. Common. Many nests were found ready 
for eggs, usually surrounded by three or four dummies. Two sets were taken 
March 21 and 26, containing slightly incubated sets of four and three eggs respec- 
tively. All nests were in mesquite trees and the great majority under six feet from 
the ground. 
69. Regulus calendula calendula. Ruby-crowned Kinglet. Several seen up to 
March 25. 
70. Polioptila caerulea obscura. Western Gnatcatcher. Not common. One 
collected March 20 and another heard on the 21st. 
71. Polioptila plumbea. Plumbeous Gnatcatcher. Abundant. Birds taken 
were nearly ready to breed. A nest found on March .10 was just begun. 
72. Planesticus migratorius propinquus. Western Robin. Common. Feed- 
ing on the mistletoe berries, many of which were still hanging. Most of the robins 
left by the 25th and 26th of March, but one or two could be .seen every day till the 
29th. 
