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 Jan., 1916 SUPPLEMENT TO THE DISTRIBUTIONAL LIST 27 Archllochus alexandrh Blaek-ehinned Hummingbird. "And recorded, perhaps casu- ally, north to Honey Lake and Camp Bidwell". This strikes one as being a needlessly cautious qualification of a species which breeds in Upper Sonoran areas straight through ' to British Columbia. We encountered this species in the Warners July 3 and 9, 1912,. and at New Albany, Oregon, June 27, 1912. Calypte costae. Costa Hummingbird. "Common summer visitant . . . northwest to Santa Barbara . . . Rare north of the 35th parallel west of the Sierras". From the circumstance of having encountered this species at La Panza (in central San Luis Obispo County) two different seasons, viz., April 21, 1912, and April 20, 1914, I should infer that the species might be a breeding bird and of regular occurrence at that sta- tion. We saw it also near Pozo, April 30, 1914. Stellula calliope. Calliope Hummer. "Summer visitant . . . south . . . to the San Bernardino Mountains". On the 26th of May, 1913, I observed the courting evolutions of a male Calliope Hummer just north of Idyllwild in the San Jaeinto Mountains. Other birds were seen June 5th and 6th in the Tahquitz Valley, and there can be little question that these were breeding birds. Tyrannus tyrannus. Eastern Kingbird. "Rare transient visitant; two records". We encountered this bird at two points on the Modoc-Lassen trip of 1912; one June 15, on the north fork of the Pit River about eight miles above Alturas, and the other June 30, near Eagleville, in the Surprise Valley. Both of these, in all probability, represented breeding birds. Tyrannu.' voclferan.. Cassin Kingbird. "Fairly common resident . . . northwest to Santa Barbara". This is perhaps based on Willett's summary: "Winters regularly north to Santa Barbara". In a residence of five years at Santa Barbara I have not seen any Kingbirds in winter along this coast. Dr. Evermann, for two years resident at Santa Paula, speaks  of both species, T. verticalis and T. vociicran$, as "summer residents" only. Streator, writing of Santa Barbara in 1886, says 8 under Tyrannus verticalis: "A very few remain through the winter". This record would undoubtedly be referable to T. vocilerans, but the presence of this species in Santa Barbara in winter must be a rather irregular occurrence. Grinnell's further statement: "Occurs commonly as a summer visitant, and breed- ing, at Paicines, San Benito County", gives one the impression that such breeding is a rare and isolated instance; and thlb is, in fact, the only reference he makes to its breed- ing outside of the "San Diegan district". As a matter of fact the Cassin Kingbird is exceedingly abundant as a breeder throughout the northeastern quarter of San Luis Obispo County. It is found also throughout the interior sections of western Sania Bar- bam County, and the probabilities are that it enjoys a continuous breeding range from western Santa Barbara county, through central and eastern San Luis Obispo, eastern Monterey, and San Benito counties to western Merced County. I found the bird west of Los Barios, just out of the foothills, on the 21st of May, 1914. A correspondent, Mr. Fred Truesdale, living near Shahdon in San Luis Obispo County, reports the taking of a set of five "Western" Kingbird's eggs on the 28th of March, 1914. The report is trustworthy as to date, and I have seen the eggs, but I sus- pect they are those of T. vocierans. Miarchu. clnera.cen$ clnera$cen. Ash-throated Flycatcher. "Northernmost rec- ord east of the Sierra Nevada: Honey Lake, Lassen County". We found this bird in a stretch of sage and juniper a few miles north of Horse Lake, June 5, 1912. Nuttallorni$ boreall.. Olive-sided Flycatcher. "Breeds west to the coast from Monterey County northward". The Olive-sided Flycatcher breeds regularly on the sea- ward slopes of the Santa Ynez Range near Santa Barbara. We took a set of three eggs from a live oak tree in Los Canoes Canyon June 5, 1915, at an elevation of about 2600. When it is recalled that Bell Sparrows and Black-chinned Sparrows breed locally above this point, one may realize how far within the limits of "Upper Sonoran" this record really comes. mpidonax tralll! trailll. Traill Flycatcher. "Summers in . . . Lower and Upper Sonoran . . . rarely low Transition". "Breeds . . . well into the foothill regions but Birds of the Pacific Slope of Southern California. by Geo. Willerr; 1912, p. 62. A List of the Birds Obtained in Ventura County, Calif., by Barton W. Evermann, Auk, vol. III, April, 1886, p. 180. 8Ornithologist & Oologist, vol. II, May, 1886, p. 66.