LAND BIRDS. 707 



TECHNICAL DESCRIPTION. 



Adulf malu: lipper parts bluish-gniy, the top of the head lead-bhie, with a bhick 

 line in fi-ont and along both sides; under jiarts mainly white, sliaded with gray on the sides; 

 outer tail-feathers white. The adult female is similar, except that it lacks the black line 

 on the head. 



Length 4 to 5.50 inches; wing 2 to 2.120; tail 2 to 2.20. 



Family 73. TURDID/E. Thrushes, Bluebirds, etc. 



A family of beautiful birds, including some of the most familiar biixls 

 of garden and orchard, as well as several delightful songsters not so well 

 known. The seven species which occur regularly in Michigan, together 

 with an eighth for which there is a single doid)tful recoi'd, may be separated 

 by means of the following artificial key. It should be remembered that 

 every member of the family has the first primary very short, never more 

 than one-fourth as long as the longest. 



KEY TO SPECIES. 



A. Under parts, at least the breast, with spots. B, BB, 

 B. Back with narrow whitish streaks or spots. C, CC. 



C. Upper stirface of wings and tail tinged with blue. Bluebird 



(young). No. 325. 

 CC. Upper surface of wings and tail without trace of blue. Robin 

 (yotmg). No. 324. 

 BB. Back without any whitish streaks or spots. 1), 1)1). 



D. Color of upper surface uniform (I)rown) from head to tail. 



E, EE. 

 E. Upper parts light (tawny) brown; chest tinged with 

 the same color and hghtly spotted. Wilson's Thrush. 

 Veery. No. 20. 

 EE. Upper parts dark (olive) brown; cliest heavilv si)otted. 

 F, FF. 

 F. Cheeks brown or bufTv. Olive-backed Thrush. No. 



322. 

 FF. Checks gray. (Iray-cheeked Thi'ush. No. 321. 

 DD. Color of upper surface not uniform, (i, (J(i. 



G. Head and ])ack uniform olive; tail deep rufous. Hermit 



Thrush. No. 323. 

 (!G. Rump and tail olive, head bright ruft)us. Wood Thi'ush. 

 No. 319. 

 AA. Under parts not si)otted. H, 1111. 

 H. J^reast red-brown. 1, II. 



I. Upper i)arts with moie oi- less blue. l>luebii'd (adult). No. 



;;25. 



II. rpper pai'ts without any trace of blue. .1, .1.1. 



.J. Tail lai'gely white with a broad black band across its tij). 



Wheatear. (Appendix.) 

 .1.1. Tail lai'gely blackish, only the two outer paii-s of feathers 

 with white near tip. Holiin (adult). No. 324. 

 1111. Breast white or merely tingeil with yellowish-biowu. Wheatear. 

 (Appendi.x.) 



