viii Contents of Volume XXXVI. 



Geographical Variation in the Song of the Ruby-crowned 



Kinglet. By Aretas A. Saunders . .... 525 



The Evolution of Bird-Song. By Francis H. Allen . . . 528 

 Revision of the Genus Buthraupis Cabanis. By Thomas E. 



Penard 536 



Descriptions of Three New South American Birds. By 



Charles B. Cory ......... 540 



The Relationship of the Gulls Known as Larus fuscus and 



Larus affinis. By Jonathan Dwight, M. D. (Plates XX and 



XXI) 542 



Former's Edition of LeVaillant's "Oiseaux d'Afrique." By 



Charles W. Richmond 546 



Notes on the Races OF'Quiscalus quiscula (Linn,eus). By Harry 



C. Oberholser .......... 549 



Notes on North American Birds. IX. By Harry C. Oberholser . 556 



GENERAL NOTES. 



European Widgeon on Long Island in Winter, 560: Breeding of the 

 Black Duck in Lake Co., Ohio, 560; Ruddy Shelldrake on the 

 Atlantic Coast, 561; Exanthemops Elliot an Excellent Genus, 562; 

 Notes on the Structure of Anseranas semipalmata, 562; Sarkidiornis 

 sylvicola in British Guiana, 564; An Overlooked Record of the 

 Trumpeter Swan, 564; Little Blue Heron on Long Island, N. Y., 565; 

 Wood Ibis in Massachusetts, 565; Roseate Spoonhill in Utah, 565; 

 Roseate Spoonbill in North Carolina, 566; Growth of a Young 

 Killdeer (Oxyechus v. vociferus), 566; Mating "Song" of the Pip- 

 ing Plover, 566; Upland Plover in New York, 567; Turkey Vul- 

 ture at Plymouth, Mass., 567; Harris's Hawk in Kansas, 567 

 Tachytriorchis, the Generic Name for the White-tailed Hawk, 567 

 A Flight of Broad-winged Hawks and Roughlegs in Lake Co., Ohio, 

 568; Buteonidae versus Accipitridse, 569; Snowy Owl in Detroit 

 Mich., 569 The Name of the Black Cuckoo, 569; Aerial Evolutions 

 of a Fljcker, 570; Two Recent Eecords of the Horned Lark in Western 

 New York, 570; Abnormal Beak of a Horned Lark {Otocoris alpestris 

 praticola), 571; The Raven in Connecticut, 572; Evening Grosbeaks 

 about Beverly Farms, Mass., 572; Evening Grosbeaks at Boonville, 

 N. Y., 573; The Evening Grosbeak on Long Island, N. Y., 573; Even- 

 ing Grosbeaks again at Lakewood, N. J., 573; Evening Grosbeak 

 (Hesperiphona v. vespertina) in Ohio in May, 574; Henslow's Sparrow 

 in New York and Virginia, 574; The Dickcissel in Virginia, 575; 

 Piranga erythromelas versus Piranga olivacea, 575; The Tanagrine 

 Genus Procnopis Cabanis, 576; Earlv Arrival of the Tree Swallow in 

 Plymouth, 577; Hybrid Warbler in Missouri, 579; The Orange- 

 crowned Warbler on Long Island in April, 579; Peculiar Brooding 

 of the Black-throated Blue Warbler, 579; The Yellow-throated 

 Warbler in Central New York, 580; Nesting of the Myrtle Warbler in 

 Southern Massachusetts, 581; The Cerulean Warbler (Dendroica 

 cerw'ca) in the Catskills, 582; Carolina Wren (Thn/othorus I. ludovi- 

 cianus) Nesting in Rhode Island, 583; A Short-billed Marsh Wren 

 Colony in Central New Hampshire, 583; Red-bellied Nuthatch 

 (Sitta canadensis) in Alabama, 584; The Blua-gray Gnatcatcher on 

 Cape Cod, 581; Strange Conduct of a Robin, 584; A Three-legged 

 Robin (Planesticus m. migratorius) , 585; Notes from St. Marks, Fla., 

 586; Further Notes from Leon Co., Florida, 587; Two Interesting 



