ee Dawson, Birds of Okanogan Co., Wash. 181 
138. Turdus ustulatus. RusseT-BACKED THRUSH.—Of uniform dis- 
tribution in all wooded hollows. 
139. Turdus aonalaschke. Dwarr Hermit THrRusuH. —A single pair 
was found ina dense fir forest on a north slope, at an elevation of 4250 
feet. 
140. Merula migratoria propinqua. WrsTERN RosiIN— Common, but 
nowhere abundant, 
141. Hesperocichlanevia. VARIED THRUSH. —A single straggler was 
seen skulking in the low tharn bushes, which line the foot of the lake, in 
early spring. It was, however, seen once again in midsummer in the 
higher ranges, where it undoubtedly breeds. 
142. Sialia mexicana occidentalis. WESTERN BLUEBIRD. — Of irregular 
occurrence. Ten birds, in a compact bunch, were sighted on the gth of 
March, and along through the middle of March numerous individuals 
were seen mingling freely with Szald¢a arctica. A group of ten were seen 
again on May 1, but no more were noted during the season. 
143. Sialia arctica. MOUNTAIN BLUEBIRD. — These exquisites, in their 
quadruple-extract-of-azure garb, are justly ranked the topmost twig of the 
American ornithological tree. They pass at their leisure through Chelan 
and up the Columbia and Okanogan Rivers, in great flocks in the spring, 
while a scattering few remain to breed. 
The following is a brief list of birds imperfectly identified or admitted 
on inconclusive evidence. 
HYPOTHETICAL LIsT. 
1. Larus occidentalis. WrSTERN GULL.— One of the Gulls seen on 
Lake Chelan probably belongs to this species. I believe it might have 
been found breeding, sparingly, four or five years ago. 
2. Larus philadelphia. BoNApaARTE’s GuLL.—Either this bird or 
L. franklinii appeared several times on Lake Chelan during Dec., 1895. 
3. Olor buccinator. TRUMPETER SwAN.—A pair seen at Wapato’s in 
the spring of 1896 could not with certainty be die dnealed from O. colum- 
btanus. ‘They are said to be not uncommon. 
4. Grus mexicana. SANDHILL CRANE.— Cranes are abundant during 
migrations, and are said to breed in the northern part of the county, in the 
‘lime belt’. I had no opportunity to determine the species. Several 
years ago an army of crickets invaded the country about Chelan, and 
immediately large flocks of Cranes appeared, who at once devoted them- 
selves to ridding the land of the pests. The Cranes are said to have 
passed south following the march of the crickets. 
5. Totanus melanoleucus. GREATER YELLOW-LEGS.—One bird 
believed to be of this species was seen flying high over the Chelan River. 
6. Centrocercus urophasianus. SAGE GrouseE.—I have it on the 
authority of Mr. G. M. Adams, of Virginia City, that ‘Sage Hens’ were 
formerly found on the north bank of the Columbia River near his place. 
