176 Dawson, Birds of Okanogan Co., Wash. Ren 
64. Tyrannus tyrannus. KincBirp.—Not nearly so common as 
T. verticalis, but of general distribution along the terraces and lake 
borders. 
65. Tyrannus verticalis. ARKANSAS KINGBIRD.—Abundant. You 
may expect to find a vociferous pair nesting among the out-buildings of 
any farm-yard. At Chelan some large fir trees along the river front con- 
tained several nests apiece. 
66. Sayornis saya. Say’s PH@sBeE.— This bird is the frequent associate 
of the Prairie Falcon, preferring to haunt just such cliffs as the nobler 
bird selects for nesting sites. Here it takes up its station about the 
middle of March, and it is rarely to be found at any considerable distance 
from home. 
67. Contopus borealis. OLIvVE-sIDED FLYCATCHER. — Not a common 
resident even in the higher ranges where it is found, but conspicuous on 
account of its clear, penetrating note, — szveé-chew, sweé-chew, delivered 
with great energy from a high branch in some fir tree. 
68. Contopus richardsonii. WESTERN Woop PEWEE.—This bird is 
perhaps the most conspicuous species of the fir-clad, precipitous shores of 
Lake Chelan, for with scarcely an interval along the shore line, its 
lugubrious notes can always be heard, The breeding range, so far as 
observed, is confined to the lake shore, where the birds choose some 
exposed situation, and set a dainty, hempen cup at the fork or foot of a 
bare limb, preferably of a sapling. Fresh eggs were found as late as 
July 28. 
69. Empidonax difficilis. WrsTERN FLYCATCHER.—The western 
Empidonaces are all at home on Lake Chelan. This species was noted 
only at Graham’s Harbor, where it breeds, but it doubtless occurs in 
suitable localities throughout the county. Note a soft, sibilant, Azs’-we?. 
70. Empidonax trailliii TRAILL’s FLycarcHEerR.— Abundant in the 
lower mountain-valleys and coulées. It is the commonest of the Empi- 
donaces wherever found, and was recorded up to 1700 feet. One of its 
common notes is f7so6. 
71. Empidonax hammondi. HAMMOND’s FLYCATCHER. — Rare. 
Found chiefly about isolated springs where it is likely to be the only 
member of the genus present. Its note is a brisk sew7zck, sewdck, and at 
rarer intervals, swztch-oo, or swecéhoo, — the latter harsh and unresonant, 
and so easily distinguished from the penetrating note of the Olive-sided 
Flycatcher. 
72. Empidonax wrightii. Wricut’s FLycATcHER.— Several speci- 
mens secured on Lake Chelan. It was found breeding at Graham 
Harbor and near Stehekin. Note a soft, liquid swt. This record 
extends the northern range of the species. 
73. Otocoris alpestris leucolema. PALLIpD HorNED LARK.— One 
individual wintered near Chelan. Easily distinguishable from 
74. Otocoris alpestris merrill Dusky HorNEp Lark.— Found 
sparingly on the lower bunch grass hills. About 20 individuals were 
