WARBLERS: ORANGE-CROWNED WARBLER 
611 
of his nest and repeats at intervals a song of remarkable fullness for a 
bird of such minute proportions” (in Coues, 1878, p. 223). The 
common forms of the song are described by H. D. Minot as “che'- 
we-che r -we-che r -we-che'-we, wit-a-wit-wit-wit . . . and che-we'-che- 
we'-che-ive'-che-a-che'-ache'.” 
Additional Literature.—Howard, C. W., Bull. Cooper Orn. Club (= Condor, 
vol. 1), 63-84, 1899. 
ROCKY MOUNTAIN ORANGE-CROWNED WARBLER: Vermivora celata 
orestera Oberholser 
Plate 64 
Description. — Wing: 2.5 inches. Adult male: Crown with a 'partially concealed 
orange-brown patch , upperparts yellowish olive-green , brighter on rump; wings and tail 
fuscous, edged with yellowish olive; underparts yellow , washed with olive. Adult 
female: Crown patch usually duller and sometimes obsolete. Young: Generally 
without crown patch. 
Range. —Breeds in southwestern Canada (British Columbia) and the western 
United States except the Pacific Coast district; winters south to central and southern 
Mexico. 
State Records. —The Rocky Mountain Orange-crowned Warbler has been 
found breeding [at Lake Burford, May 23-June 19, 1918 (Wetmore) ]; in the Capitan 
Mountains, August 6, 1903; at Arroyo Hondo, 8,000 feet, August 13, 1904 (Gaut); 
at Willis, 8,000 feet, August 19, 1903; near Twining, 10,700 feet, August 5, 1904 
(Bailey); and in the Culebra Mountains, 12,300 feet, August 20, 1904 (Gaut). It 
has also been taken in Hondo Canyon, 8,200 feet, August 10, 1904, and Santa Clara 
Canyon, August 25, 1906 (Bailey)* 
In the fall migration, it has been recorded at Rio Puerco, September 3, 1905 
(Hollister); in the mountains near Taos, at 8,800 feet, September 17 and 19, 1903 
(Bailey); at Riley, September 23, 1905 (Hollister); Lake Burford, at 7,600 feet, 
October 2, 190-4 (Gaut); Quemado (10 miles southwest) October 3, 1906 (Bailey); 
Santa Rosa, October 7, 1902 (Gaut); and Gila, Grant County, October 8, 1908 
(Goldman). It is reported from the Gila National Forest, where it was common at 
Reserve, August 20-September 6, 1908 (Birdseye); from the Datil National Forest, 
in the San Mateo Mountains, September 21 and 22, 1906 (Bailey); and at 9,500 feet 
September 1, 1909 (Goldman); Largo Canyon, and also Pinyon Mountains, October 
2-4, 1906 (Bailey). It has also been recorded from Guadalupe Canyon, Mexican 
Boundary Line, Fort Defiance, and Big Hatchet Mountains. 
In the spring migration, it was taken April 28 and May 3, 1904, at Rinconada, 
5,600 feet (Surber). 
Nest. —On or near the ground, made largely of leaves and fine grasses. Eggs: 
4 or 5, white, with specks or spots of brown, more numerous at the larger end. 
Food.— Small insects. 
General Habits. —The quiet, yellowish green Orange-crowns were 
met with several times in the field season of 1904. At about 10,000 
feet on Lake Fork above Twining, on August 4, we were much pleased 
to discover one of them feeding bob-tailed young in the willow bushes 
near camp; at timberline on the Culebra Mountains, about two weeks 
later, another was seen in a willow patch, and still later, at Lake Bur- 
