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The Auk, Volume 108, Number 2 (1991)

2 (April)


Nannopsittaca Dachilleae, a New Species of Parrotlet From Eastern Peru. 225-229.
John P. O'Neill, Charles A. Munn, Irma Franke J.
Ecogeographic Variation in the American Robin (Turdus Migratorius). 230-249.
John W. Aldrich, Frances C. James.
Food of Juvenile Common Eiders (Somateria Mollissima) in Areas of High and Low Salinity. 250-256.
K. G. Kenneth Nystr.
A Miniature Activity Recorder For Plunge-Diving Seabirds. 257-263.
David J. Anderson, Paul R. Sievert, John Andrews-Labenski, Robert E. Ricklefs.
Dispersion Patterns and Habitat Associations of Rufous-Sided Towhees, Common Yellowthroats, and Prairie Warblers in the Southeastern Massachusetts Pine Barrens. 264-276.
David C. Morimoto, Fred E. Wasserman
Clutch Size and Reproductive Success of House Wrens Rearing Natural and Manipulated Broods. 277-284.
Kathryn D. Robinson, John T. Rotenberry.
Erratum. 284.
Green Woodhoopoes (Phoeniculus Purpureus) and Obligate Cavity Roosting Provide a Test of the Thermoregulatory Insufficiency Hypothesis. 285-293.
Joseph B. Williams, Morn.
Influence of Site Fidelity on Mate Switching in Urban-Breeding Merlins (Falco Columbarius). 294-302.
Ian G. Warkentin, Paul C. James, Lynn W. Oliphant.
Foraging Ecology of Nuttall's Woodpecker. 303-317.
William M. Block.
Notes and News. 318-370.
Interspecific Allozyme Differentiation Among North Atlantic White-Headed Larid Gulls. 319-328.
Richard R. Snell.
Variably Plumaged Icelandic Herring Gulls Reflect Founders Not Hybrids. 329-341.
Richard R. Snell.
Winter Weather, Spring and Summer Density, and Subsequent Breeding Success of Eurasian Kestrels, Common Buzzards, and Northern Goshawks. 342-347.
Renate Kostrzewa, Achim Kostrzewa.
Rejection Behavior By Common Cuckoo Hosts Towards Artificial Brood Parasite Eggs. 348-354.
Arne Moksnes, Eivin R.
Food Patches and the Spacing of Individual Foragers. 355-362.
Scott M. Pearson.
100 Years Ago in the Auk. 362.
Growth and Brood Reduction of Mid-Atlantic Coast Ospreys. 363-370.
Robert J. Steidl, Curtice R. Griffin.
Female Condition and Delayed Benefits to Males That Provide Parental Care: A Removal Study. 371-380.
Licia Wolf, Ellen D. Ketterson, Val Nolan Jr.
Sequestered Paralytic Shellfish Poisoning Toxins Mediate Glaucous-Winged Gull Predation on Bivalve Prey. 381-392.
Rikk G. Kvitek.
Sexual Differences in Parental Effort During the Nestling Period in Tree Swallows (Tachycineta Bicolor). 393-404.
Michael P. Lombardo.
Nest-Site Selection and Nesting Success of Cavity-Nesting Birds in High Elevation Forest Drainages. 405-418.
Pingjun Li, Thomas E. Martin.
Signs of Trouble in the Largest Remaining Population of Red-Cockaded Woodpeckers. 419-423.
Frances C. James.
In Memoriam: Frederick Nathan Hamerstrom. 424-426.
John T. Emlen.
Reviews. 445-459.


Confusions of Mass and Size. 441-443.
Theunis Piersma, Nick C. Davidson.
On the Use of Tape Recorders in Avifaunal Surveys. 443-444.
Theodore A. Parker Iii.

Short Communications

Dipper Nestlings Fed By a Gray Wagtail. 427-429.
Sonja I. Yoerg, John O'Halloran.
Mate Attraction By Autumnal Song in the Northern Mockingbird (Mimus Polyglottos). 429-432.
Cheryl A. Logan, Laura E. Hyatt.
Measurement Error of External and Skeletal Variables in Birds and Its Effect on Principal Components. 432-436.
S. C. Lougheed, T. W. Arnold, R. C. Bailey.
Marine Protein Contributions to the Diet of Northern Saw-Whet Owls on the Queen Charlotte Islands: A Stable-Isotope Approach. 437-440.
Keith A. Hobson, Spencer G. Sealy.
Attachment Size
Back Matter (PDF) (915.62 KB) 915.62 KB
Front Matter (PDF) (245.3 KB) 245.3 KB

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