CONTENTS 



Notes on a New Subspecies of Blue-winged Teal. By Fred H. Kennard 



(Plate XVII) 455 



The Systematic Position of the Ring-necked Duck. By N. Hollister . . 460 



Jacob Post Gibaud, Jr., and his Works. By Witmer Stone (Plate XVIII) . 464 

 Further Notes and Observations on the Birds of Hatlet, Stanstead County, 



Quebec, 1918. By H. Mousley 472 



Dicbromatism in the Wedge-tailed Shearwater. By Leverett Mills Loomis 



(Plate XIX) 487 



The Nest and Eggs of Wayne's Warbler (Dendroica virens waynei) Taken 



near Mount Pleasant, S. C. By Arthur T. Wayne ..... 489 



A Heronry on Lake Cormorant, Minnesota. By Horace Gunthorp . . 492 



Bird-Life in Southwestern France. By Thomas D. Burleigh . . . . 497 



Notes on Birds of the Chicago Area and its Immediate Vicinity. By C. W. 



G. Eifrig 513 



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 



Forster's Edition of LeVaillant's "Oiseaux d'Afrique." By Charles W. 



Richmond ............. 546 



Notes on the Races of Quiscalus quiscula (Linn^us). 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 Spoonbill in Utah, 565; Roseate Spoon- 

 bill in North Carolina, 566; Growth of a Young Killdeer (Oxyechus v. vociferus), 566; 

 Mating ' ' Song ' ' of the Piping,Plover, 566 ; Upland Plover in New York, 567 ; Turkey 

 Vulture 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 Accipitridae, 569; Snowy 

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

 of a Flicker, 570; Two Recent Records 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; Evening Grosbeaks again at Lakewood, N. J., 573; Evening' Grosbeak (Hesperi- 

 phona 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; Early 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 cerulea) in the Catskills, 582; Carolina Wren (Thryothorus I. 

 ludovicianus) Nesting in Rhode Island, 5S3; A Short-billed Marsh Wren Colony in 

 Central New Hampshire, 583; Red-bellied Nuthatch (Sitta canadensis) in Alabama, 

 584; The Blue-gray Gnatcatcher on Cape Cod, 584; 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 Additions 

 to the Collection of the Boston Society of Natural History, 589; Bird Notes from 

 Collins, Erie Co., N. Y., 589; Additions to 'The Birds of Liberty County Ga.," 

 590; Data on the Age of Birds, 591. 



Recent Literature. — Bent's 'Life Histories of North American Diving Birds,' 593; 

 Ridgway's 'The Birds of North and Middle America, Part VIII,' 595; Witherbys' 

 'A Practical Handbook of British Birds, 597; Roberts on Minnesota Birds, 598; 

 Second Ten Year Index to The Condor, 598; Riley on New Birds from Celebes and 

 Java, 599; Chubb on South American Birds, 599; Lonnberg on Hybrid Gulls, 599; 

 Recent Papers by Oberholser, 600; Captain S. A. White's Explorations in Australia, 

 601; Bangs and Penard's 'Critical Bird Notes,' 601; Cassinia for 1918, 602; Glad- 

 stone's 'Birds and the War,' 602; Mathew's 'The Birds of Australia,' 603; Wetmore 

 on Lead Poisoning in Waterfowl, 605; French's 'The Passenger in Pennsylvania, 

 605; Economic Ornithology and Bird Protection, 606; Report of the National 

 Zoological Park. 607; Annual Report of the New York Zoological Society,607 ; The 

 Meaning of Natural Control, 608; An Essay on Crows, 609; Two Papers on African 

 Economic Ornithology, 609; Report on the Economic Value of Eight British Birds, 

 610; The Ornithological Journals, 610; Ornithological Articles in Other Journals, 617. 



Correspondence. — Permits to Collect Birds for Scientific Purposes in Canada, 621; 

 Captain Thomas Brown's 'Illustrations of the American Ornithology of Wilson and 

 Bonaparte,' 623; Feeding of Grackles, 627. 



Notes and News. — Obituary Notices — William Brewster, 628; M. Namiye, 628; 

 Merrill Willis Blain, 629; Leo Wiley, 629; Indexes to Ornithological Literature — 

 Journals, 630; Where American Ornithologists Rest, 631; Complete Sets of 'The 

 Auk,' 634; The Smithsonian African Expedition, 634; Annual Meeting of the 

 A. O. U., 635. 



Index 



Errata 



Dates of Issue . 



Officers of the A. O 



Contents 



U. Past and Present 



668 

 668 



