TURDID^ — THE THRUSHES. 57 



This strongly marked race is decidedly distinct from its eastern 

 representative in both habits and song, the latter being far finer. 



Turdus aliciae Baird. 



GRAY-CHEEKED THRUSH. 



Popular synonyms. Alice's Thrush. 



Turdus alicia;. Bated, B. N. Am. 1858, 217; ed. 18(11, pi. 81. fig. 2; Cat. N. Am. B. 1859, No. 



134; Review, 1864.21.— B. B. & R. Hist. N. Am. B. i, 1874, ii, pi, i. flg. .3. 

 Tardus swainsoni var. aliciw CouES, Key, 1872, 7.S; Cheek List, 1S7S, No. 5a. 

 Tardus swaiasouii b. aliciie C:UEs B. N. W. 1874, 4; B. Col. Tal. 1878, 35. 

 Turdus ustulatus alicice CouES. 2nd Check: List, 1882, No. 12. 



Eylocicldaalickc BiDG-w.Proc. U. S. Nat. Mus. ill. 1880,160; Nom. N. Am. B. 1880, 

 No. 3. 

 Hab. Arctic and subarctic America in summer, from Labrador to Alaska (Pacific 

 coastj; passing through the eastern United States during migrations, and wintering in 

 Central America, south to Colombia; eastern Siberia. 



Sp. Ch. Above uniform greenish olive-brown; no trace of light orbital ring. Beneath 

 ■white usually more or less tinged with buff on the jugulum. the sides uniform olive-gray. 

 Jugulumwith lower parts and sides of throat marked with rather small triangular spots 

 ot dusky. Wing, 3.S5-4.40 (4.18); tail, 2.85-3.25 (3.05); culmen, .50-58 (.54); tarsus, 1.15-1.25 

 (I.IU); middle toe, .63- .72 (.09).* 



Adult in Spring. Above uniform greenish olive-brown, the tail and outer portion of 

 wings sometimes appreciably browner, or less greenish; sides of head nearly uniform 

 dull grayish, the auriculars faintly streaked with white. Malar region and lower parts 

 in general, white, the entire sides uniform olive-gray, and the jugulum usually (but not 

 always) more or less tinged with light buff; jugulum, with lower part and sides of throat, 

 marked with rather small but very distinct deltoid spots ot dusky, these markings more 

 cuueate anteriorly, and forming a nearly continuous submalar stripe along each side of 

 throat, the extreme posterior spots decidedly transverse; breast marked with transverse 

 spots of olive-gray, like the color of the sides. Bill black, the basal half of the mandible 

 pale colored (dull flesh-color in life); interior of mouth bright yellow; tarsi and toes pale 

 brown or horn-color, the toes usually darker. 



Adalt in fall and winter. Similar, but usually more greenish olive, and the buff tinge 

 on jugulum more distinct. 



Turdus alic'uE is apparently a very near ally of T. fuscesccns, with 

 which it agrees much more closely in measurements and in pattern 

 of coloration, than with T. ustulatus swainsonii with which it has 

 usually been compared, and, by many confused, though needlessly 

 so. From the latter it may be invariably distinguished by the en- 

 tire absence of a light orbital ring, the whole side of the head being 

 nearly uniform grayish, as in fuscescens. The spots on the jugulum 

 average decidedly smaller; the jugulum and malar region are much 

 less distinctly buff ; the sides much grayer, etc. Some specimens 

 of alicia and swaiiisoiiii are identical in the color of the upper parts, 



*Extreme and average measurements of 38 adults. 



