Contents
Notes on the Behavior of the White Bellbird
Barbara K. Snow
Turnover and Ecological Release in the Avifauna of Mona Island, Puerto Rico
John Terborgh and John Faaborg
Time-based Responding in Pigeons and Crows
Robert W. Powell
Regional Variation in the Food of Nestling Cattle Egrets
Donald A. Jenni
Habitat Partitioning by Foraging Gulls in Maine and Northwestern Europe
George L. Hunt Jr. and Molly W. Hunt
Methods and Annual Sequence of Foraging by the Sapsucker
James Tate Jr.
California Sparrows Fail to Return from Displacement to Korea
L. Richard Mewaldt, Lloyda T. Cowley, and Pyong-Oh Won
In Memoriam: Herbert Lee Stoddard
Owen J. Gromme
Periodical Literature
The Auk
Obituaries
The Auk
Notes and News
The Auk
Index to Volume 90
The Auk
General Notes
A House Sparrow Roost in Lima, Peru
Charles F. Leck
Spread-wing Posturing in Cathartid Vultures
James A. Kushlan
Canada Goose Goslings Leaving Cliff Nest
Norbert G. Kondla
Predatory Behavior of Smooth-billed Ani
Antonio Olivares and J. A. Munves
Song Mimesis by a Captive Gouldian Finch
Luis F. Baptista
Breeding Attempts by Juvenile Great Blue Herons
Helen M. Pratt
Diurnal Sleep Rhythm of a Young Barred Owl
Frances Hamerstrom and Keith Janick
Unusual Venous Plan in Frigatebird Kidneys
Oscar W. Johnson
Habituation of Aggressive Responses to Avian Predators by Terns
Martin K. Mcnicholl
An Attempted Third Brood in the White-throated Sparrow
Daniel J. Loncke and J. Bruce Falls
Food and Foraging Ecology of the Jamaican Becard
Alexander Cruz
The Vocal Repertoire of Male American Woodcock
David E. Samuel and Donald R. Beightol
Woodpecking" by a Red-throated Barbet"
L. L. Short
A Pleistocene Record for the White-winged Scoter in Maryland
Alexander Wetmore
Starlings Eat Larvae on Corn Ears without Eating Corn
Paul A. Stewart
A Plumage Aberration of Cariama Cristata
Storrs L. Olson
Winter Singing of the Purple Finch in Massachusetts
Stewart Duncan
Volume of Forster's Tern Eggs
Martin K. Mcnicholl
Hummingbird Drinking Seawater
Peter R. Bacon
Covers
Front Matter
The Auk
Back Matter
The Auk