4, 89, 90.

Observing, 1, 2, 40, 60-61, 66, 67, 68, 81, 82, 109, 114, 123,
130, 135, 139, 141, 166, 195, 196, 197, 198, 201-205, 215.
assisting in nest building, 97, 109-110, 175-183.
delight of finding a new bird, 13.
proportion of birds identified without a gun, 2, 140.
temptations in, 92, 93, 194.

Oden Canyon, 159-160.

Oregon Robin, 20.

Oriole, 27, 104, 130, 131.

Oriole, Arizona Hooded,
building, 89.

Oriole, Bullock's, 162.
attacking an owl, 139.
nest, 117.
song flight, 184.

Owl, 105, 215-216.
asleep in window, 137.
diet of rats and mice, 137.
hiding in wells and mining shafts, 137, 138.

Owl, Barn,
an old crone, 139.
nesting site, 139.

Owl, Burrowing, 119, 212.
battles with a collie, 11, 12.
feeding young, 11, 12.
nest not shared with rattlesnakes, 11.
screws head off, 11.

Owl, Western Horned,
devices to protect young, 8, 9.
mobbed by neighbors, 138.

Pewee, Wood, 161-162.
building, 57, 59, 61.
nesting site, 57, 60.
nest moved, 60.
perch, 62, 161.

Phainopepla, 194-210.
a distinguished bird, 194.
building (done by male), 199, 203, 204, 205, 206.
call, 205.
eating pepper berries in door-yard, 197.
nest, 205.
nesting site, 199.
song, 205.

Ph[oe]be, Black, 115, 128-130, 189.
brooding under a pump, 129.
in the hen-house, 130.
nest, 130.
nesting site, 117, 128-129, 130.

Pipit, American, 16.

Pond, made by spring rains,
rendezvous of birds, 5, 14-17.

Poor-will, Dusky,
call, 101-102.
flycatching, 101.

Quail, Valley,
call, 5.
flight of covey, 30.
in chaparral, 55.
in vineyard, 73.
tracks, 43.

Rabbit,
cottontail, 94, 118, 164.
jack, 5, 29, 94-95, 97.

Road-runner, 98-101.
around ranch-house, 100.
drowned in windmill tanks, 100.
eating with hens, 100.
fleetness, 98.
hunting cocoons, 100.
love call, 101.
nest, 99, 216.

Robin, 8, 92.

Shrike, White-rumped, 124-127, 128.
absence of birds in neighborhood, 126.
building, 125, 126-127.
gentle at nest, 125, 126.
invading blackbird premises, 124-125.
nest, 125.
nesting site, 125, 127.

Snakes,
gopher, 43, 71, 120, 187-188.
racer, 108.
rattle, 43, 120, 121, 203.
ringed, 55.
water, 15.

Sparrow,