Mar., 1921 NOTES ON BIRDS OBSERVED NEAR WILLIAMS, ARIZONA 61 
cyanocephalus, Sturnella m. hoopesi, Carpodacus cassum, Spinus p. pinus, Pooe- 
cetes g. confims, Junco h. hyemalis, Junco h. mearnsi, Junco canceps, Junco o. 
shufeldtr, Lanius |. excubitorides, Oreoscoptes montanus, Certhia f. montana, 
Baeolophus 1. griseus, Psaltriparus plumbeus, and hegulus c. calendula. These 
make a total of 65 species of birds observed by the writer in this locality. 
1. Zenaidura macroura marginella (Woodhouse). Western Mourning Dove. 
Fairly common. One seen July 7 and several noted on July 9 and 11. 
2. Falco sparverius phalaena (Lesson). Western Sparrow Hawk. Fairly com- 
mon. Seen daily from July 7 to 14. 
3. Dryobates villosus leucothorectis Oberholser. White-breasted Woodpecker. 
Common on the slopes of Bill Williams Mountain. A brood of young out of the nest but 
still under the care of their parents seen on July 8. Three specimens secured here in 
1907 have the following wing measurements: Male (March 19) 124 mm., female (March 
2) 126 mm., female (March 8) 122 mm. In the male two or three of the outer median 
wing coverts have narrow streaks of white along the shaft. In the first female meu- 
tioned above all of the outer median coverts are conspicuously marked with white and 
there is a white spot on one of the lesser coverts. The third specimen has the white 
limited to a very narrow linear spot not more than two millimeters long on one median 
covert in either wing. 
4. Balanosphyra fcrmicivora aculeata (Mearns). Mearns Woodpecker. This 
species was common among the oaks on the level flat west of town and also in similar 
zrowth south of Williams around the eastern base of Biil Williams Mountain. Young 
fully grown were seen on my arrival. I found this woodpecker shy and secretive at 
times so that it frequently hid behind limbs and remained motionless for long periods in 
order to escape observation. One evening at dusk several were greatly excited when i 
was “squeaking” in an endeavor to call up an owl. 
5. Colaptes cafer collaris Vigors. Red-shafted Flicker. This Flicker was com- 
mon among the yellow pines throughout the region. On July 9 I noted that young birds 
were apparently fully grown. 
6. Chordeiles virginianus henryi (Cassin). Western Nighthawk. The Nighthawk 
was commcn about Williams and numbers were seen coursing low over the ground along 
side streets at dusk. On July 11 one was heard booming in the canyon south of town. 
7. Seiasphorus rufus (Gmelin). Rufous Hummingbird. This species appeared 
in numbers on July 13 and had evidently just arrived in migration as none had been ob- 
served previously. The birds were feeding at a large gentian, probing one or two 
flowers at a time and then pausing to rest for a minute of two on a twig. They con- 
tinued to feed until it was so dark that I had some difficulty in finding my way down 
over the rocks out of the narrow gully in which I had been watching them. In flying 
their wings made a subdued humming and the birds called chewp chewp in a low tone. 
All that were seen on this occasion were males, but on the next evening, July 14, I ob- 
served several females. Specimens were taken. 
8. Selasphorus platycercus (Swainson). Broad-tailed Hummingbird. This hum- 
mer was fairly common about the base of Bill Williams Mountain and was observed 
daily. An adult male was shot on July 7 and others were observed until July 14. 
9. Tyrannus vociferans Swainson. Cassin Kingbird. A few of these Kingbirds 
were found about scattered yellow pines in the areas south and west of Williams. Two 
pairs frequented tall pines standing in the streets of the town where their loud notes 
were heard morning and evening. 
10. Nuttallornis borealis (Swainson). Olive-sided Flycatcher. The Olive-sided 
Flycatcher was common in the small gulches on the north and east slopes of Bill Wil- 
liams Mountain. While no nests were observed, the birds were evidently paired and 
specimens taken on July 14 were in breeding condition. A female was secured on this 
date that had deposited eggs. The birds were observed daily from July 7 to 14. Usually 
they were found perched -in the tops of the tallest dead pines, but on occasion they 
alighted among the limbs of living Douglas fir. In feeding they were very active and 
then often descended for short periods to lower perches. I found that each bird had 
favorite posts for observation and. shifted about from one to another. Their call notes 
were heard at intervals during the day and at evening came continually from the moun- 
tain sides, one of the few bird voices that was heard in the dusk of the canyons as the 
