80 



REVIEW OF AMERICAN HIUDS. 



[part I. 



feathers of the top ofhond nro rather darker than tho odpes, though 

 almost inappreoiahly ho, and not imparting a general dusky apjiear- 

 anco. Tho chin and tlnoat are white, streaked with ashy hrown. 

 Tho jnguhim and breast are pale yellowish buflF; the axillurs, inner 

 wing coverts and sides of the breast similarly, but rather more de- 

 cidedly eolored. The belly and edges of tho erissal feathers are 

 white, ihe hinder parts of the flanks ashy. Thure is a distinet 

 whitish stripe from the lores over, and a (piarter of an inch behind 

 the eye ; the lower eyelid is also white. The tail feathers are 

 worn, but there is an indieation of a narrow white tip. The 

 feathers of the jugulum, especially of the sides, arc tipped with 

 ashy like the back, as in immature specimens of T. migralorius. 

 The greater wing coverts are tipped with dull white. The bill is 

 yellowish ; the upper mandible and the tip of lower tinged with 

 dusky. The feet are pale brown. 



The length cannot be given accurately, as the skin is mnch drawn 

 up. The wing, however, measures 5.10 inches, its tip reaching 1.40 

 beyond the longest secondary; tail, 4 10; tarsus, 1.20; middle toe 

 and claw, 1.07 ; exposed portion of culraen, .92 ; from tip to open 

 portion of nostrils, .60. 



The specimen with a general resemblance to ar immature T. 

 migralorius (especially the western variety), in the white superciliary 

 streak and general markings, is much lighter beneath than in any of 

 the many skins of T. viigralorius before me ; there being none of 

 the dark chestnut or cinnamon shade, but rather a light buflF; tho 

 belly and flanks are much more purely white. The 8U])erciliary 

 stripe extends farther behind the eye ; indeed in most specimens of 

 viigratorius the white is nearly confined to the jyelids. The bill 

 and v.ings are rather longer than usual in migra:orius ; the middle 

 toe, on the other hand, appears shorter. 



The specimen lacks entirely the reddish-brown back of T. Jlavi- 

 roatris, in which latter also the brea.st and sides are like those of 

 viigratorius. The white of the belly is even more extended. It 

 has a whitish superciliary streak, entirely wanting in Jlavirostris. 

 The upper part of the jugulum is not streaked. The wings are 

 longer and more pointed, and the primaries extend considerably 

 farther beyond the secondaries. The bills are of the same size ; the 

 tarsus is 1.20, or longer than the middle toe and claw ; while in Jlavi- 

 rostris (although a larger bird) the tarsus is only 1.00, and shorter 

 than the middle toe and claw (1.20). 



Upon the whole, it may be that the specimen before me represents 

 an abnormal plumage of T. migratorius ; but its rather different 



lilillri;: 



I 



1 





