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Ibis

Vol. 142, No. 1. January 2000

J.C. Wingfield, S. Ishii, M. Kikuchi, S. Wakabayashi, H. Sakai, N. Yamaguchi, M. Wada & K. Chikatsuji Biology of a critically endangered species, the Toki (Japanese Crested Ibis) Nipponia nippon 1

K.L. Buchanan & C.K. Catchpole Extra-pair paternity in the socially monogamous Sedge Warbler Acrocephalus schoenobaenus as revealed by multilocus DNA fingerprinting 12

A. Amar, B.E. Arroyo & V. Bretagnolle Post-fledging dependence and dispersal in hacked and wild Montagu’s Harriers Circus pygargus 21

G.J. Fernández & J.C. Reboreda Egg losses and nest desertion in Greater Rheas Rhea americana 29

M. Ueta, F. Sato, H. Nakagawa & N. Mita Migration routes and differences of migration schedule between adult and young Steller’s Sea Eagles Haliaeetus pelagicus 35

A.W. Goldizen, J.C. Buchan, D.A. Putland, A.R. Goldizen & E.A. Krebs Patterns of mate-sharing in a population of Tasmanian Native Hens Gallinula mortierii 40

M. Frederiksen & A. Petersen The importance of natal dispersal in a colonial seabird, the Black Guillemot Cepphus grylle 48

P. Shaw & M. Shewry Abundance, group size and breeding success of Bare-cheeked Babblers Turdoides gymnogenys 58

I. Newton & P. Rothery Timing and duration of moult in the Bullfinch Pyrrhula pyrrhula: an appraisal of different analytical procedures 65

P. Padmanabhan & Y. Yom-Tov Breeding season and clutch size of Indian passerines 75

K. Falk, S. Benvenuti, L. Dall’Antonia, K. Kampp & A. Ribolini Time allocation and foraging behaviour of chick-rearing Brünnich’s Guillemots Uria lomvia in high-arctic Greenland 82

S.H.M. Butchart Population structure and breeding system of the sex-role reversed, polyandrous Bronze-winged Jacana Metopidius indicus 93

H. Weimerskirch, P.A. Prince & L. Zimmermann Chick provisioning by the Yellow-nosed Albatross Diomedea chlororhynchos: response of foraging effort to experimentally increased costs and demands 103

R. Holland, F. Bonadonna, L. Dall’Antonia, S. Benvenuti, T.B. De Perera & T. Guilford Short distance phase shifts revisited: tracking clock-shifted homing pigeons (Rock Dove Columba livia) close to the loft 111

L. Sasvári & Z. Hegyi Sex-related local recruitment in colonial and solitary breeding European Tree Sparrows Passer montanus L. 119

P. Lloyd, E. Plagányi, D. Lepage, R.M. Little & T.M. Crowe Nest-site selection, egg pigmentation and clutch predation in the ground-nesting Namaqua Sandgrouse Pterocles namaqua 123

S.E.A. le V. Dit Durell, J.D. Goss-Custard, R.T. Clarke & S. McGrorty Density-dependent mortality in Oystercatchers Haematopus ostralegus 132

Short communications

D.H. Ellis, P. Tsengeg, P. Whitlock & M.H. Ellis Predators as prey at a Golden Eagle Aquila chrysaetos eyrie in Mongolia 139

J.N. Kristiansen, A.D. Fox, H. Boyd & D.A. Stroud Greenland White-fronted Geese Anser albifrons flavirostris benefit from feeding in mixed-species flocks 142

A.M. Booth, E.O. Minot, R.A. Fordham & M.J. Imber Co-ordinated food provisioning in the Little Shearwater Puffinus assimilis haurakiensis: a previously undescribed foraging strategy in the Procellariidae 144

K.C. Hamer, J.K. Hill, J.S. Bradley & R.D. Wooller Contrasting patterns of nestling obesity and food provisioning in three species of Puffinus shearwaters: the role of predictability 146

J.H. Cooper First fossil record of Azure-winged Magpie Cyanopica cyanus in Europe 150

M. Soler, J.J. Palomino, M. Martín-Vivaldi & J.J. Soler Lack of consistency in the response of Rufous-tailed Scrub Robins Cercotrichas galactotes towards parasitic Common Cuckoo eggs 151

M. de L. Brooke, M.J. Imber & G. Rowe Occurrence of two surface-breeding species of Pterodroma on Round Island, Indian Ocean 154

Recent ornithological publications 159

BOU information 172

News and notices 173

Report of the BOU Records Committee 177

Obituaries

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