HARPORHYNCHUS. 543 



brownish gray spot ; lores dusky, bordered above by a very indistinct pale brown 

 stripe on each side of forehead ; lower parts plain dull brownish white, the flanks 

 indistinctly streaked with dark brownish, and malar region indistinctly barred 

 with same ; bill and feet brownish black ; length about 9.50-10.00, wing 4.35-4.40, 

 tail 5.00-5.10, exposed culmen .80, tarsus 1.40-1.50, middle toe .90. Hah. Socorro 

 Island, western Mexico. 



M. graysoni (Baird). Socorro Thrasher.' 



Genus HARPORHYNCHUS Cabanis. (Page 530, pi. CXX., figs. 3, 5.) 



Species. 



(Xest very bulk}-, composed of dried twigs, rootlets, etc. (the material varying 

 with the locality or according to the species), placed in small, usually thorny, trees, 

 vines, or bushes. Eggs very variable in coloration, but usually speckled.) 



a'. Tarsus longer than exposed culmen ; gonys much shorter than middle toe, with- 

 out claw ; tail exceeding wing by not more than length of tarsus ; lower 

 parts more or less distinctly spotted or streaked (these markings sometimes 

 obsolete in S. bendirei and H. palmeri). (Subgenus Methrioptenis Eeich.) 

 t'. Above reddish brown ; both rows of wing-coverts distinctly tipped with 

 white, this preceded by a dusky bar; markings on loiver parts lineai-, 

 wedge-shaped, or tear-shaped, 

 c'. Culmen curved for the terminal half only, and not longer than middle 

 toe without claw; gonys perfectly straight; above bi'ight tawny 

 brown or rusty cinnamon ; beneath huffy white, or pale buff, the 

 markings on sides of bi-east usually bi-ownish ; length about 10.50- 

 12.00, wing 4.10-4.60 (4.31), tail 5.00-5.75 (5.32), exposed culmen 

 .90-1.10 (.99), tarsus 1.28-1.40 (1.3G). Eggs 1.06 X -78, greenish 

 white, very pale greenish, pale buffy, etc., minutely speckled or 

 sprinkled with reddish brown (this sometimes the prevailing color). 

 Siib. Eastern United States, west to base of Eocky Mountains, 

 north to southern Maine, Ontario, and Manitoba; winters in more 

 southern States (north to about 37°). 



705. H. rufus (Linn.). Brown Thrasher. 



c*. Culmen decidedly curved from the base, and decidedly longer than 



middle toe, with claw ; gonys appreciably concave ; above dull 



umber-brown, somewhat more rusty on wings and tail ; beneath 



pure white, the markings on sides of breast (and elsewhere) deep 



black. 



d\ Wing 3. SO, or more, tail 4.80, or more ; basal portion of lower 



mandible light horn-color, or otherwise pale-colored; length 



about 10.50-12.00, wing 3.80-4.20, tail 4.80-5.45, culmen 1.05- 



' Barporhytcliut grai/toni "Baird, Mi.," Lawr., Ann. Ljrc. N. Y. i. 1871, 1. 



