ver ee as 
Blasipus heermanni LawRENceE, in Baird, Rep. Pacific R. R. Surv., ix, 1858, 848; 
Mem. Bost. Soc. N. H., ii, 1874, 317 (Mazatlan; Isabella Island, in winter).— 
Barr, Cat. N. Am. Birds, 1859, no, 666; Proc. Ac. Nat. Sci. Phila., xi, 1859, 
306 (Cape San Lucas).—Cooper and Sucxiey, Rep. Pacific R. R. Surv., 
xii, pt. ii, 1860, 275 (Straits of Fuca, Cape Disappointment, and mouth of 
Columbia River, Washington).—Covuss, Ibis, 1864, 388 (Chiapam, Guate- 
mala; -crit.).—Ripeway, Orn, 40th Parallel, 1877, 636 (San Francisco Bay). 
Blasipus heermani Covss, Proc. Ac. Nat. Sci. Phila., 1862, 304 (monogr.). 
Larus (Blasipus) heermanni Covzs, Birds Northwest, 1874, 641.—Covzs and 
Streets, Bull. U.S. Nat. Mus., no. 7, 1877, 26 (Isla Raza, Gulf of California, 
breeding; habits). 
[Epitelolarus] heermanni Heine and Reitcuenow, Nom. Mus. Hein. Orn., 1890, 
359. 
Larus belcheri (not of Vigors) Barrp, in Stansbury’s Great Salt Lake, 1852, 335 
(Pacific coast North America) —SciaTeR, Proc. Zool. Soc. Lond., 1859, 237 
(Vancouver Island).—ScuHtrcet, Mus. Pays-Bas, vi, no. 23 (Lari), 1863, 9, 
part.—Cougs, Check List, 1873, no. 551. 
[Larus} belcheri Couns, Key N. Am. Birds, 1872, 314. 
Blasipus belcheri Buasius, Journ. fiir Orn., 1865, 378. 
BLASIPUS FULIGINOSUS (Gould). 
SOOTY GULL. 
Adults in summer (sexes alike).—Head and upper neck dark sooty 
gray (deep quaker drab), fading toward bill into lighter and more 
brownish gray, the posterior outline rather distinct, forming a fairly 
well-defined “hood;” a longitudinal spot of white near each eyelid; 
lower neck, chest, and upper parts in general plain gray (between 
neutral gray and deep quaker drab on back, etc.), slightly paler 
(between light neutral gray and light mouse gray) on median under 
parts, the under tail-coverts pale gray to grayish white, the upper 
tail-coverts light neutral gray; secondaries passing into very pale 
gray or grayish white at tips; six outer primaries dull slate-blackish, 
the shorter ones with a pale gray terminal spot, the proximal prima- 
ries gray (like back, etc.), with indistinct terminal margins of paler 
gray; tail rather light brownish gray, the lateral rectrices paler; bill 
dark bay (in life), shading into black terminally, the tip of maxilla 
burnt sienna; iris brown; naked orbital ring dark crimson;? legs 
and feet dark prune purple, the webs bay beneath and under side of 
toes rufous.? 
Immature (nearly adult).—Similar to summer adults, but head and 
upper neck more brownish, with many feathers of the younger 
plumage intermingled; under parts darker and more brownish gray, 
the under tail-coverts not approaching grayish white; secondaries 
and proximal primaries much darker, the former approaching black 
and very distinctly and broadly tipped with gray, the latter with more 
or less distinct subterminal spots of blackish; tail much darker gray, 
@ Gifford, Proc. Calif. Acad. Sci., ii, 1918, 45. According to Saunders (Cat. Birds 
Brit. Mus., xxv, 1896, 223) the bill is lake red and feet livid black; both appear black, 
or nearly so, in dried skins. 
