Jeffries on the Sesamoid of the Carpus in Birds. 1 3 



74. Spizella socialis, Bou. Chipping Bird. — Abundant in October 

 and November, and again in March. 



75. Spizella pallida, Bon. Clay-colored Bunting. — Abundant in 

 winter near thickets and in fields with brier-patches. 



76. Spizella pusilla, Bo)i. Fikld Sparrow. — Not uncommon during 

 winter. 



77. Junco liiemalis, Sclat. Common Snowbird. — Abundant winter 

 visitor. 



78. Melospiza fasciata, Scott. Song Sparrow. — Common during 

 the winter months. 



79. Melospiza lincolni, Bd. Lincoln's Sparrow. Common in 

 winter in the thick undergrowth on the borders of woods. 



80. Peucaea cassini, Bd. Cassin's Finch. — A common summer 

 resident on the open grassy prairies. It runs like a mouse through the 

 grass, and is very shy and difficult to observe. A nest I never discovered. 



81. Pipilo erythrophthalmus, Vieill. Ground Robin. — A rare sum- 

 mer resident. A few pairs breed in the woods on Spring Creek. 



82. Calaniospiza bicolor. Bon. Lark Bunting. — Abundant in 

 winter on the prairies. 



83. Euspiza americana, Bou. Black-throated Bunting. — A com- 

 mon summer resident. Breeds abimdantly in all the prairie districts. 



84. Cardinalis virginianus, Bon. Cardinal Grosbeak.— This well- 

 known bird is the most abundant of the family and resident throughout 

 the year. 



85. Guiraca caeriilea, S-v. Blue Grosbeak. — Regularly dis- 

 tributed summer resident, but nowhere abmidant. Nests discovered 

 always in brier-patches in fields, on road-sides, and on the border of 

 woods. 



86. Cyanospiza ciris, Bd. Painted Finch. — Inhabits with the pre- 

 ceding similar localities. Very common from April to October. Nest 

 usually in blackberry-bushes, but always well hidden and not easy to find- 

 These birds are very shy and exceedingly quick in all their motions. 



87. Cyanospiza cyauea, Bd. Indigo Bird. — Observed only during 

 the migrations. None I think remain to breed. 



{^To be concluded.) 



ON THE SESAMOID AT THE FRONT OF THE 

 CARPUS IN BIRDS. 



BY J. AMORV JEFFRIES. 



In the Bulletin for October. 1S81, is a paper by Dr. Shufeldt 

 entitled "■ On the Ossicle of the Antibrachium as found in some 

 of the North American Falconida^," in which the author describes 



