616 ON SOME NEW FORMS OF AMERICAN BIRDS. 
A series of six specimens (four males and two females), sent 
for examination, is said by Mr. Aiken to illustrate fully the limit 
of variation in a series of some twenty or thirty skins. No. 1071 
(Aiken’s collection) is an extreme example. This has the wing 
bands °20 of an inch wide, while the secondaries are broadly 
tipped with white, forming a third band (somewhat as in Cyanura 
cristata) when the wing is closed ; the primaries are conspicuously 
skirted with white for the terminal half, and the three outer tail 
feathers on each side are entirely white; only the middle pair is 
without any white on the webs, and these have the shafts of this 
color. The other extreme is illustrated in No. 1068, which has 
the bands on the coverts hardly indicated, while there are none on 
the inner webs of the secondaries nor outer webs of the primaries. 
There is nearly as much white on the tail, however, as in No. 1071. 
Mr. Aiken says that “the majority of the females are without 
the wing-bands, and they are occasionally wanting in the male.” 
The largest specimen in the series measures as follows: “ length, 
7:15; extent, 11:50;” wing, 3°60; tail, 3-50; culmen, 51; depth 
of bill, -27; tarsus, °85. Few males are smaller and the variation 
in size is very slight. 
Hasits. But little is known as to the habits of this variety; 
probably they do not differ from those of its congeners. It was 
met with by Mr. C. E. Aiken, near Fountain, El Paso county, in 
Colorado Territory, in the winter of 1871-72. They were rare 
in the early winter, became rather common during the latter part 
of February and the first of March, and had all disappeared by the 
first of April. During winter only males were seen, but in the 
spring, the females were most numerous. They were usually 
seen singly, or in companies of two or three, and not like the 
others, in larger flocks 
: . . ~ . * 
13. Peucea estivalis, var. Arizone Riweway. Arizona Sparrow. 
Sp. CHAR. (6,327 g, Los Nogales, northern Sonora, June; C. B. Kennerly)- Similar 
to P. xstivalis, but paler; wings and tail longer. genes light chestnut, all the 
feathers margined and tipped with bluish-gray, but the reddish gaes oe ee 
lar and crown feathers with a narrow streak of black, those on crow stinct. Be- 
raceo’ ross the ast 
neath 
erissum pale ochraceous. An obsolete light superciliary, and narrow dusky maxillary _ 
stripe. Bend of waur yellow; lesser coverts tin with greenish-yellow. Length 6 
‘inches; wing, = pagon 3-00; bill. -32 from nostril, -25 deep at base; tarsus, 80; middle 
a 63.. HAR. Nogales, Sonora, and southern Arizona. 
= *Peucæa Cassini Baird, Birds N. Am., 1858, 436. (Los Nogales specimen.) 
= BS eae ae 
