100 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Auk, iii, 188G, 178 (mountains w. North Carolina, Ijreeding between 4,000 to 

 5,800ft.; crit.)-— TowNSEND, Auk, iv, 1887, 13 (Kowak R., Alaska, com- 

 mon). — Lloyd, Auk, iv, 1887, 298 (Tom Green and Concho counties, w. Texas, 

 migrant).— Cooke, Bird Migr. Miss. Val., 1888, 287-292.— Comeau, Auk, 

 viii, 1891, 317 (Godbout, Quebec, Nov., Dec). — Macfarlane, Proc. U. S. 

 Nat. Mus., xiv, 1891, 445 (Fort Anderson; Swan and Wilmot Horton rivers; 

 breeding). — Nehrling, Our Native Birds, etc., i, 1893, 28, pi. 1, fig. 1. — 

 GuNDLACH, Orn. Cubana, 1893, 48.— Howe, Auk, xv, 1898, 162-167 (breeding 

 habits in Massachusetts). — Palmer (W.), Avifauna Pribilof Islands, 1899, 420 

 (accidental). — Osgood, North Am. Fauna, no. 21, 1901, 81 (Hope and Sunrise, 

 Cook Inlet, Alaska). — Bigelow, Auk, xix, 1902, 31 (Port Manvers, Labrador, 

 large flocks, Sept. 16).— McGregor, Condor, iv, 1902, 144 (Castle Rock, 

 Alaska). — Knight, Bull. Univ. Wyom. Agric. Ex. Sta., no. 55, 1902, 157 

 (summer res. e. of Laramie Mts.). — Schalow, Vogel der Arktis, 1904, 268 

 (Godthaab and Sukkertoppen, Greenland). ^Osgood, North Am. Fauna, 

 no. 24, 1904, 81 (Iliamna, Swan Lake, etc., Alaska.) 



[Menda] migratoria Cory, List Birds AV. I., 1885, 5. — Coues, Key N. Am. Birds, 

 5th ed., i, 1903, 249. 



Mlerula] migratoria Ridgway, Man. N. Am. Birds, 1887, 577. 



Turdus (Planesticus) migratorius Baird, Rep. Pacific R. R. Surv., ix, 1858, 218, 

 part. 



Planesticus migralorius Gundlach, Journ. fin- Orn., \1871, 293 (Cuba); 1872, 405 

 (Cuba). 



[Planesticus] migratorius Heine and Reichenow, Noni. Mus. Hein., 1890, 4. 



Turdus canadensisM.V'Li.KV., Syst. Nat. Suppl., 1776, 140 (ex Brisson, Orn., ii, 225, 

 no. 9). 



PLANESTICUS MIGRATORIUS ACHRUSTERUS (Batchelder^. 

 CAROLINIAN ROBIN. 



Similar to P. m. migratorius but smaller, with coloration paler and 

 duller. Adult male with black of head broken by more or less broad 

 grayish margins to feathers; gray of back duller and browner, rarely, 

 if ever, with blackish centers to feathers; color of breast, etc., tawny- 

 ochraceous to tawny cinnamon-rufous. Adult female with grayish 

 margins to feathers of head broader, sometimes nearly concealing the 

 central dusky areas, and color of breast, etc., yellowish ochraceous- 

 buff to tawny-ochraceous. Young paler in color than that of P. m. 

 migratorius, with under parts largely (sometimes mostly) whitish and 

 less heavily spotted. 



Adult male. —hength (skins), 189-198 (194); wing, 119-124 (121.8); 

 tail, 87.5-90 (89.2) ; exposed culmen, 18.5-20.5 (19.5) ; tarsus, 31-31.5 

 (31.3); middle toe, 19.5-21 (20.2). « 



Adult female.—hength (skins), 188.5-233 (210); wing, 117.5-126.5 

 (121.9); tail, 87.5-90.5 (89.2); exposed culmen, 18.5-20.5 (19.1); 

 tarsus, 29.5-32.5 (31.3); middle toe, 19-21.5 (20.2).'' 



a Three specimens, with remiges and rectrices considerably worn. 

 b Eleven specimens. (The extremes in length of wing and tail represented by breed- 

 ing specimens from the type locality.) 



