412 ORNITHOLOGY. 



List of specimen. 



333, g ad.; 5i-8§-2|-2i-|— §-2f-lJ. 334, 9 ad.; 5^-8^—21-^-2^—^^^-^ 

 — 2^— IJ. 335, <? ad.; S^V-Si— 2|— 2^— §— ii— 2J— 1§. Carson City, Nevada, No- 

 vember 27, 1867. Bill, plumbeous-black ; iris, deep hazel ; tarsi and toes, dull plumbeous. 



450, (? ad.; Carson City, March 21, 1868. 5/^— S§— 3— 24. Bill, black ; iris, burnt- 

 sienna; tarsi and toes, plumbeous black. 



Paeus ATRICAPILLUS. 



Black-capped Chickadee. 



/?. septentrionalis — Long-tailed Chickadee. 



Farm septentrionalis, Harris, Pr. Ac. Nat. Sci. Philad., 1815, 300.— Baibd, B. 



N. Am., 1858, 389; Cat. N. Am. B., 1859, No. 289; Review, 1864, 79. 

 Panis atricapillns var. septentrionalis, Allen, Bull. Mus. Comp. Zool., Ill, 1872, 



174.— CoUES, Key, 1872, 81 ; Check List, 1873, No. 31a; B. N.W., 1874, 21. 



— B. B. & R., I, 1874, 99, pi. vii, fig 2.— Henshaw, 1875, 170, 

 Pariis septentrionalis var. albescens, Baikd, B. N. Am., 1858, p. xxxvii; Cat. N. 



Am. Birds, 1859, No. 289a. 



;/. occidcntaUs — Western Chickadee. 



Pants occidentalis, Baird, B. N. Am., 1858, 391; Cat. N. Am. B., 1859, No. 291; 



Review, 1864, 81.— Elliot, Illustr. Am. B., [, pi. viii.— Cooper, Orn. 



Cal., 45. 

 Par^ls atricapillus var. occidentalis, CouES, Key, 1872, 81 ; Check List, 1873, No. 



31c.— B. B. & R., Hist. N. Am. B., I, 1874, 101, pi. vii, fig. 3. 



The common Black-capped Chickadee was apparently wanthig in all 

 portions of the western depression of tlie Great Basin, and even on the 

 eastern side it was so extremely rare that none were seen except in the 

 valley of the Prove River, where but a few families, with their full-grown 

 young, were met with. They kept in the willow thickets, and seemed very 

 gregarious, in marked contrast to the Mountain Chickadee (P. montanus) 

 and tliat eastern species, the Southern Black-cap, or Carolina Chickadee 

 {P. carolinensis). Their notes were also very different, the usual utter- 

 ances being a sort of twittering, resembling but little the distinct and sharp 

 notes of the species named. 



List of specimens. 



1392, 5 juv.; 5f'g—l^. 1393, <? JHr.; 5^Sj— 7^. 1394, S juv.; 5^- 8g. Provo River, 

 Utah, July 11, 1869. Bill, black; interior of mouth, yellow; iris, dark brown; tarsi 

 and toes, fine ashy-blue. 



