iv Contents of Volume XXI. 



Ridgwajon New American Birds, 93; Nelson on New Birds from 

 Mexico, 93; Oberholser on a New Wren from Texas, 94; Hartert's 

 ' Die Vogel der palaarktischen Fauna,' 94 ; ' The Avicultural Mag- 

 azine,' 95 ; Seth-Smith's Handbook of Parakeets, 96. 



SUPPLEMENT. 



Report of the A. O. U. Committee on the Protection of 

 North American Birds for the Year 1903. By William 

 Dutcher. {Plates XII-XVII.) " . . 97 



NUMBER II. 



Masked Bob-white {Colinus ridgzvayi). By Herbert Brozvn. 209 



Curved-billed AND Palmer's Thrashers. Yi\ Josiak H. Clark. 



(Plate XVIII.) " . . . .214 



San Clemente Island and its birds. By George F. Brenin- 



ger. ............. 218 



A List of Land Birds from Central and Southeastern 



Washington. By Robert E. Snodgrass 223 



Birds of Allegany and Garrett Counties, Western Mary- 

 land. By G. Eifrig. 234 



The Obligations of the Student of Animal Behavior. 



By William Morton Wheeler. . . . . . . .251 



Unpublished Letters of John 'James Audubon and Spen- 

 cer F. Baird. By Ruthven Deane. ...... 255 



Nesting Habits of the Herodiones in Florida. V,y A. C. Bent. 



[Plates XIX-XXI.) " . • ^59 



The Rhythmical Song of the Wood Pewee. By Henry Oldys. 270 



The Status of Melospiza lincolni striata Brewster. By Joseph 



Grifinell. . . . . . . . . . . .274 



GENERAL NOTES. 



Hoibcell's Grebe at Niagara Falls, 276; Holboell's Grebe and the 

 White Pelican at St. Mary's, Georgia, 277 ; Another Ohio Record 

 for the Knot (Tringa ca?iiitiis), 277 ; Tlffe Red-backed Sandpiper 

 in Massachusetts in December, 277 ; Capture of Krider's Hawk 

 at St. Mary's, Georgia, 277; The Great Gray Owl near Boston, 

 278 ; The Pileated Woodpecker in Anne Arundel County, Md., 

 278; Whip-poor-will {.Antrostomus vociferus), a New Bird for 

 Colorado, 278; Another Abnormal Bill, 279; The Western 

 Meadowlark {Stiirnella tnagna neglecta) in Southern Georgia, 

 280; The Evening Grosbeak near Qiiebec, Canada, 280; The 

 Pine Grosbeak on Long Island, N. Y., 280, 281 ; White-winged 

 Crossbill — A Correction, 2S1 ; The Lark Sparrow in Oneida 

 County, N. Y., 281 ; The Chewink in Winter at Ashland, Mass., 

 282 ; Another Nest of the Philadelphia Vireo, 282; The Phila- 

 delphia Vireo, 283; A Winter Record for the Hermit Thrush 



