1917 BIRDS OF THE SOUTHERN CALIFORNIA ISLANDS 61 
1908, p. 127. (10) Howell and van Rossem, Condor, xii, 1911, p. 209. (11) Willett, 
Pac. Coast Avif., 7, 1912, p. 57. (12) Wright and Snyder, Condor, xv, 1913, p. 91. 
C[olaptes]. aluratus]. luteus (13) Howell and van Rossem, Condor, x1, 1911, p. 209. 
Rather common resident of Santa Cruz, and present on Catalina during the 
winter at least. J. Grinnell (4) met with these birds in some numbers on Cata- 
lina during December, 1897, flushing them from the north slopes, where they 
were digging in the damp turf for larvae. I have noted two or three here in 
early April. C. H. Richardson (8) considers them to be merely winter visitants 
in this locality, as he was unable to find any old nesting holes. H. Linton (MS) 
shot one on San Nicolas in May, 1910, which he presented to G. Willett. 
Numerous on Santa Cruz, and although no nests have been reported, they 
surely breed as they are present throughout the year. A. van Rossem and I 
found them exceedingly shy. We stated (10, 13) that many birds were seen in 
which the usual red was replaced by yellow, and judged accordingly that there 
were also Northern Flickers present, or at least hybrids which closely approached 
the latter. I have since changed this opinion, and consider, that whatever may 
‘be the correct explanation of the occurrence of the so-called hybrid flickers that 
are reported from many parts of the west, the birds of Santa Cruz are amenable 
to the same influences that cause the red of the linnets here often to be replaced 
by yellow. 
102. Phalaenoptilus nuttalli californicus Ridgway 
Dusky Poor-wiLL 
Phalaenoptilus nuttalli californicus (1) Grinnell, Pasadena Acad. Sci., 1, 1897, p. 14. (2) 
Mearns, Bull. U. S. Nat. Mus., tv, 1907, p. 142. (3) Richardson, Condor, x, 1908, p. 
66. (4) Willett, Pac. Coast Avif., 7, 1912, p. 57. (5) Grinnell, Pac. Coast Avif., 11, 
1915, p. 84. 
A regular but not common migrant through the southern islands. J. Grin- 
nell (1) says that on San Clemente from March 30 to April 2, 1897, this bird 
was heard each evening, and a female was secured March 31. As no one else has 
heard them there, the above would indicate that perhaps there was an unusually 
heavy migratory wave of them passing through that year. C. H. Richardson (3) 
has seen them occasionally in April on Catalina, and during 1911 I saw two birds 
on the 8th of that month and another on the 10th. O. W. Howard (MS) shot a 
bird on Anacapa Island, April 6, 1906. 
103. Chordeiles acutipennis texensis Lawrence 
Texas NIGHTHAWK 
Chordeiles acutipennis texensis (1) Willett, Pac. Coast Avif., 7, 1912, p. 58. (2) Grin- 
nell, Pac. Coast Avif., 11, 1915, p. 85. 
G. Willett (2) shot an adult female on Santa Barbara Island, June 20, 1911, 
and dissection showed her to be breeding. Although a careful search was made 
during the succeeding days, her mate could not be located, and it is barely possi- 
ble that she had wandered over from one of the larger islands the night before. 
