Migration pattern of Icelandic Lesser Black-backed Gulls Larus fuscus graellsii: indications of a leap-frog system Gunnar Thor HallgrimssonHallgrimur V. GunnarssonKees C. J. Camphuysen Original Article 21 April 2012 Pages: 603 - 609
Giant Babaxes mix brood reduction and brood survival strategies Bo DuQing-Shan ZhaoNai-Fa Liu Original Article 16 November 2011 Pages: 611 - 619
Previous experiences with humans affect responses of Snares Penguins to experimental disturbance Ursula EllenbergThomas MatternPhilip J. Seddon Original Article 23 November 2011 Pages: 621 - 631
The effect of an external transmitter on the drag coefficient of a bird’s body, and hence on migration range, and energy reserves after migration C. J. PennycuickPeter L. F. FastNiels Rattenborg Original Article 19 November 2011 Pages: 633 - 644
Testing the structural–function hypothesis of eggshell maculation in the Great Tit: an experimental approach M. MägiR. MändS. J. Reynolds Original Article 22 November 2011 Pages: 645 - 652
Breeding time trends of the Crested Tit (Lophophanes cristatus) in southern Finland: comparison of data sources T. EevaP. AndelminE. Lehikoinen Original Article 08 December 2011 Pages: 653 - 661
Nest-site preferences of Eleonora’s Falcon (Falco eleonorae) on uninhabited islets of the Aegean Sea using GIS and species distribution models Christina KassaraAnastasios DimalexisSpyros Sfenthourakis Original Article 22 November 2011 Pages: 663 - 675
Predicting the distribution of Tawny Owl (Strix aluco) at the scale of individual territories in Denmark Rikke Anker JensenPeter SundeGösta Nachman Original Article 22 November 2011 Pages: 677 - 689
Changing migration patterns of the Short-eared Owl Asio flammeus in Europe: an analysis of ringing recoveries John CalladineChris du FeuRichard du Feu Original Article 24 November 2011 Pages: 691 - 698
The evolution of the feather: Sinosauropteryx, life, death and preservation of an alleged feathered dinosaur Theagarten Lingham-Soliar Original Article 03 December 2011 Pages: 699 - 711
Individual behavioural variability of an ecological generalist: activity patterns and local movements of Mallards Anas platyrhynchos in winter Annette SauterPius KornerLukas Jenni Original Article 22 November 2011 Pages: 713 - 726
Patterns of yolk testosterone deposition in two populations of Arctic-breeding Redpolls Lisa S. HaywardErica E. M. MoodieJohn C. Wingfield Original Article 08 December 2011 Pages: 727 - 734
Patterns of nest placement in a population of Marsh Tits Poecile palustris Richard K. BroughtonRoss A. HillShelley A. Hinsley Original Article 03 December 2011 Pages: 735 - 746
Landscape structure, human disturbance and crop management affect foraging ground selection by migrating geese Zuzanna M. RosinPiotr SkórkaPiotr Tryjanowski Original Article Open access 09 December 2011 Pages: 747 - 759
A comparison of the adrenocortical responses to acute stress in cardueline finches from the Tibetan Plateau, Arctic Alaska and lowland Western North America Dongming LiGang WangFumin Lei Original Article 23 December 2011 Pages: 761 - 770
Migratory connectivity derived from sparse ring reencounter data with unknown numbers of ringed birds Fränzi Korner-NievergeltFelix LiechtiSteffen Hahn Original Article 17 December 2011 Pages: 771 - 782
Bone collagen and muscle δ13C in relation to the timing of the migration of Garden Warblers Sylvia borin during return migration from Africa Elizabeth YohannesRaymond LeeUlf Bauchinger Original Article 15 December 2011 Pages: 783 - 791
Is the transition from biparental to male-only care in a monogamous seabird related to changes in body mass and stress level? Katarzyna Wojczulanis-JakubasDariusz JakubasAnna Kośmicka Original Article Open access 29 December 2011 Pages: 793 - 800
Experimental evidence for a predation cost of begging using active nests and real chicks Juan Diego Ibáñez-ÁlamoLaura ArcoManuel Soler Original Article 29 December 2011 Pages: 801 - 807
Annual survival and breeding dispersal of a seabird adapted to a stable environment: implications for conservation Justine BrabySigrid J. BrabyRes Altwegg Original Article 03 February 2012 Pages: 809 - 816
Does breeding success lead meadow passerines to select late mown fields? Joël BroyerLaurence CurtetMélanie Boissenin Original Article 11 January 2012 Pages: 817 - 823
Nestmate killing by obligate brood parasitic chicks: is this linked to obligate siblicidal behavior? Ning WangRebecca T. Kimball Original Article 13 January 2012 Pages: 825 - 831
Plumage bacterial load increases during nest-building in a passerine bird Priit KilgasPauli SaagRaivo Mänd Original Article 07 January 2012 Pages: 833 - 838
Complementing the puzzle of Eleonora’s Falcon (Falco eleonorae) migration: new evidence from an eastern colony in the Aegean Sea Christina KassaraJakob FricSpyros Sfenthourakis Original Article 18 January 2012 Pages: 839 - 848
Breeding land birds across the Greek islands: a biogeographic study with emphasis on faunal similarity, species–area relationships and nestedness Stylianos Michail SimaiakisMichail DretakisStavros Xirouchakis Original Article 11 January 2012 Pages: 849 - 860
Spatial patterns in the use of foraging areas and its relationship with prey resources in the threatened Olrog’s Gull (Larus atlanticus) Nicolás SuárezMaría Valeria RetanaPablo Yorio Original Article 18 January 2012 Pages: 861 - 871
Maximising the power of discrimination is important in microsatellite-based paternity analysis in songbirds Micaela PoetschEva BähnischPhilip Dammann Original Article 22 January 2012 Pages: 873 - 880
Flight speeds of migrating seabirds in the Strait of Gibraltar and their relation to wind María Mateos-RodríguezBruno Bruderer Original Article 05 February 2012 Pages: 881 - 889
Habitat at the mountain tops: how long can Rock Ptarmigan (Lagopus muta helvetica) survive rapid climate change in the Swiss Alps? A multi-scale approach Rasmus RevermannHans SchmidBoris Schröder Original Article 16 February 2012 Pages: 891 - 905
Dutch House Martins Delichon urbicum gain blood parasite infections over their lifetime, but do not seem to suffer Theunis PiersmaMarco van der Velde Original Article Open access 21 February 2012 Pages: 907 - 912
Trophic structure of arthropods in Starling nests matter to blood parasites and thereby to nestling development Peter H. J. WolfsIzabela K. LesnaJan Komdeur Original Article Open access 19 February 2012 Pages: 913 - 919
Time-window of occurrence and vegetation cover preferences of Dartford and Sardinian Warblers after fire Pere PonsMiguel ClaveroRoger Prodon Original Article 17 February 2012 Pages: 921 - 930
Fuelling for the Sahara crossing: variation in site use and the onset and rate of spring mass gain by 38 Palearctic migrants in the western Sahel Nicholas J. BaylyPhilip W. AtkinsonStephen J. R. Rumsey Original Article 17 February 2012 Pages: 931 - 945
Numerical and behavioural response of Black-headed Gull Chroicocephalus ridibundus on population growth of the expansive Caspian Gull Larus cachinnans Piotr SkórkaJoanna D. WójcikMagdalena Lenda Original Article Open access 17 February 2012 Pages: 947 - 961
Kin structure and choice of brood care in a Common Eider (Somateria m. mollissima) population Martti HarioMarja-Liisa KoljonenJukka Rintala Original Article 18 February 2012 Pages: 963 - 973
A Great Reed Warbler × Reed Warbler hybrid (Acrocephalus arundinaceus × Acrocephalus scirpaceus) in northeastern Romania Constantin IonLucian BolboacaDragos Lucian Gorgan Short Note 20 March 2012 Pages: 975 - 978
Over-representation of bird prey in pellets of South Polar Skuas M. Mercedes SantosMariana A. JuáresC. Patrick Doncaster Short Note 13 April 2012 Pages: 979 - 983
Standing out from the crowd: are patagial wing tags a potential predator attraction for harriers (Circus spp.)? Iñigo ZuberogoitiaBeatriz ArroyoStephen G. Murphy Short Note 18 April 2012 Pages: 985 - 989
Buccal swabs as a reliable source of DNA for sexing young and adult Common Swifts (Apus apus) Arndt H. J. WellbrockChristina BauchKlaudia Witte Short Note 24 April 2012 Pages: 991 - 994
Strong circumstantial evidence for ethanol toxicosis in Cedar Waxwings (Bombycilla cedrorum) Hailu KindeEileen FoateRobert Poppenga Short Note 12 May 2012 Pages: 995 - 998