Jeffries on the Sesamoid of the Carpus in Birds. 
13 
74. Spizella socialis, Bon. 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, Bon. Field Sparrow. — Not uncommon during 
winter. 
77. Junco hiemalis, 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. Feucaea 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. Fipilo erythrophthalmus, Vieill. Ground Robin. — A rare sum- 
mer resident. A few pairs breed in the woods on Spring Creek. 
82. Calamospiza bicolor, Bon. Lark Bunting. — Abundant in 
winter on the prairies. 
83. Euspiza americana, Bon. Black-throated Bunting. — A com- 
mon summer resident. Breeds abundantly 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 cserulea, S-zv. Blue Grosbeak. — Regularly dis- 
tributed summer resident, but nowhere abundant. 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 cyanea, 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. AMORY JEFFRIES. 
In the Bulletin for October, 1881, 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 
