Ibis
Vol. 140, No. 1. January 1998
MAIN PAPERS
S. M. KOSSENKO & C. H. FRY
Competition and coexistence of the European Bee-eater Merops apiaster and the Blue-cheeked Bee-eater Merops persicus in Asia
KAREN L. WIEBE & KATHY MARTIN
Age-specific patterns of reproduction in White-tailed and Willow Ptarmigan Lagopus leucurus and L. lagopus
CHIARA MARCHETTI, DARIA PATRIZIA LOCATELLI, ARIE J. VAN NOORDWIJK & NATALE EMILIO BALDACCINI
The effects of prey size on diet differentiation of seven passerine species at two spring stopover sites
DAWSON
Photoperiodic control of the termination of breeding and the induction of moult in House Sparrows Passer domesticus
YOSSI LESHEM & YORAM YOM-TOV
Routes of migrating soaring birds
IAN M. EVANS, PEDRO J. CORDERO & DAVID T. PARKIN
Successful breeding at one year of age by Red Kites Milvus milvus in southern England
J. TYACK, S. S. WALLS & R. E. KENWARD
Behaviour in the post-nestling dependence period of radio-tagged Common Buzzards Buteo buteo
CARMELO FERNANDEZ, PAZ AZKONA & JOSE A. DONAZAR
Density-dependent effects on productivity in the Griffon Vulture Gyps fulvus: the role of interference and habitat heterogeneity
SYLVIE MASSEMIN, YVON LE MAHO & YVES HANDRICH
Seasonal pattern in age, sex and body condition of Barn Owls Tyto alba killed on motorways
G. R. POTTS
Global dispersion of nesting Hen Harriers Circus cyaneus; implications for grouse moors in the U.K.
YAA NTIAMOA-BAIDU, THEUNIS PIERSMA, POPKO WIERSMA, MARTIN POOT, PHIL BATTLEY & CHRIS GORDON
Water depth selection, daily feeding routines and diets of waterbirds in coastal lagoons in Ghana
JOHN D. GOSS-CUSTARD, JOHN ROSS, SELWYN McGRORTY, SARAH E.A. le V. dit DURELL, RICHARD W. G. CALDOW & ANDREW D. WEST
Locally stable wintering numbers in the Oystercatcher Haematopus ostralegus where carrying capacity has not been reached
D. GRIMILLET, G. ARGENTIN, B. SCHULTE & B. M. CULIK
Flexible foraging techniques in breeding Cormorants Phalacrocorax carbo and Shags Phalacrocorax aristotelis: benthic or pelagic feeding?
T. M. PEAKE, P. K. McGREGOR, K. W. SMITH, G. TYLER, G. GILBERT & R. E. GREEN
Individuality in Corncrake Crex crex vocalizations
MARIUSZ CICHON, PAWEL OLEJNICZAK & LARS GUSTAFSSON
The effect of body condition on the cost of reproduction in female Collared Flycatchers Ficedula albicollis
I. NEWTON, P. ROTHERY & L. C. DALE
Density-dependence in the bird populations of an oak wood over 22 years
ADRIAN J.F.K. CRAIG & MARTIN H. VILLET
Sexual dimorphism and tail-length in widowbirds and bishopbirds (Ploceidae: Euplectes spp.): a reassessment
KONRAD HALUPKA
Vocal begging by nestlings and vulnerability to nest predation in Meadow Pipits Anthus pratensis; to what extent do predation costs of begging exist?
ERIC PASQUET
Phylogeny of the nuthatches of the Sitta canadensis group and its evolutionary and biogeographic implications
GADI KATZIR & GRAHAM R. MARTIN
Visual fields in the Black-crowned Night Heron Nycticorax nycticorax: nocturnality does not result in owl-like features
KAREL WEIDINGER
Incubation and brooding rhythm of the Cape Petrel Daption capense at Nelson Island, South Shetland Islands, Antarctica
SHORT COMMUNICATIONS
AKE LINDSTROM
Mass and morphometrics of Little Stints Calidris minuta on autumn migration along the Arctic coast of Eurasia
SVEIN HAFTORN, WEI-CHING HUANG, CORTLAND K. GRISWOLD & JACK P. HAILMAN
Independent discoveries of a new, apparently homologous call in the Willow Tit Parus montanus and Black-capped Chickadee Parus atricapillus
SHOJI HAMAO & KEISUKE UEDA
Nest sharing by polygynously mated females in the Black-browed Reed Warbler Acrocephalus bistrigiceps
WOLFGANG WINKEL
Monoterritorial bigyny in the Pied Flycatcher Ficedula hypoleuca
SANTIAGO MERINO & EDUARDO MINGUEZ
Absence of haematozoa in a breeding colony of the Storm Petrel Hydrobates pelagicus
BOU RECORDS COMMITTEE REPORT
RECENT ORNITHOLOGICAL PUBLICATIONS
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