ARTICLES

Vigilance in Urban Swan Geese and Their Hybrids. Christoph Randler, pages 257–260.

Radio-Telemetry Evidence of Re-nesting in the Same Season by the Marbled Murrelet. Percy N. Hébert, Harry R. Carter, Richard T. Golightly, and Dennis L. Orthmeyer, pages 261–265.

Deciphering the Social Structure of Marbled Murrelets from Behavioral Observations at Sea. Suzann G. Speckman, John F. Piatt, and Alan M. Springer, pages 266–274.

Temperature Regulation and the Constraints of Climate in the Eared Grebe. Hugh I. Ellis and Joseph R. Jehl Jr., pages 275–279.

Predation on Common Tern Eggs in Relation to Sub-colony Size, Nest Aggregation and Breeding Synchrony. Antonio Hernández-Matías, Lluís Jover, and Xavier Ruiz, pages 280–289.

Urban Lakes and Waterbirds: Effects of Development on Avian Behavior. Ashley H. Traut and Mark E. Hostetler, pages 290–302.

Wading Bird Nesting Effort as an Index to Wetland Ecosystem Integrity. Gaea E. Crozier and Dale E. Gawlik, pages 303–324.

Intraspecific Kleptoparasitism in Lesser Black-backed Gulls Wintering Inland in Spain. Ismael Galván, pages 325–330.

Cockle-opening by a Dabbling Duck, the Brown Teal. Suzanne J. Moore and Phil F. Battley, pages 331–334.

Sexual Differences in Vigilance of Paired Ruddy Shelduck in Winter. Rui-Chang Quan, Liang-Wei Cui, and XianJi Wen, pages 335–337.

Separating the Tristan Albatross and the Wandering Albatross Using Morphometric Measurements. Richard J. Cuthbert, Richard A. Phillips, and Peter G. Ryan, pages 338–344.

Lead Fishing Weights and Other Fishing Tackle in Selected Waterbirds. J. Christian Franson, Scott P. Hansen, Terry E. Creekmore, Christopher J. Brand, David C. Evers, Adam E. Duerr, and Stephen DeStefano, pages 345–352.

Are Rice Fields in Southeastern Australia an Adequate Substitute for Natural Wetlands as Foraging Areas for Egrets?. Adam J. Richardson and Iain R. Taylor, pages 353–363.

Density-Dependent Patch Selection by Foraging Cattle Egrets. Fritz Gerhardt and Edward H. Taliaferro, pages 364–369.

Food of Breeding Great White Egrets in an Agricultural Area of Southern Chile. Ricardo A. Figueroa and Ema S. Corales Stappung, pages 370–375.

Stomach Contents of Breeding Common Murres Caught in Gillnets off Newfoundland. Sabina I. Wilhelm, Gregory J. Robertson, Paul A. Taylor, Scott G. Gilliland, and David L. Pinsent, pages 376–378.

Winter Breeding by Black-crowned Night Heron in Eastern Spain. J. Ignacio Dies, Natalia Ramón, and Josefina Prosper, pages 379–382.

Book Review. Falk Huettmann, pages 383–384.