1. Syllable sharing and changes in syllable repertoire size and composition within and between years in the great reed warbler, Acrocephalus arundinaceus

   • Ewa Węgrzyn
   • Konrad Leniowski

   Original Article 11 October 2009 Pages: 255 - 267

   

2. Diet and habitat selection in Cantabrian Capercaillie (Tetrao urogallus cantabricus): ecological differentiation of a rear-edge population

   • Beatriz Blanco-Fontao
   • Alberto Fernández-Gil
   • Mario Quevedo

   Original Article 11 October 2009 Pages: 269 - 277

   

3. Geographical and habitat differences in concentrations of copper, zinc and arsenic in eggshells of the Rook Corvus frugilegus in Poland

   • Grzegorz Orłowski
   • Zbigniew Kasprzykowski
   • Ryszard Polechoński

   Original Article 10 October 2009 Pages: 279 - 286

   

4. Divergence in New Holland Honeyeaters (Phylidonyris novaehollandiae): evidence from morphology and feeding behavior

   • Steven Myers
   • Geoffrey Brown
   • Sonia Kleindorfer

   Original Article 09 October 2009 Pages: 287 - 296

   

5. Habitat structure versus food abundance: the importance of sparse vegetation for the common redstart Phoenicurus phoenicurus

   • Nicolas Martinez
   • Lukas Jenni
   • Niklaus Zbinden

   Original Article 08 October 2009 Pages: 297 - 307

   

6. What are we dealing with? An explicit test reveals different levels of taxonomical diagnosability in the Sylvia cantillans species complex

   • Mattia Brambilla
   • Severino Vitulano
   • Ettore Randi

   Original Article 14 October 2009 Pages: 309 - 315

   

7. Response of breeding European Storm Petrels Hydrobates pelagicus to habitat change

   • Bernard Cadiou
   • Fredéric Bioret
   • Delphine Chenesseau

   Original Article 08 October 2009 Pages: 317 - 327

   

8. Seasonal differences in at-sea activity of seabirds underline high energetic demands during the breeding period

   • Nele Markones
   • Volker Dierschke
   • Stefan Garthe

   Original Article 17 October 2009 Pages: 329 - 336

   

9. Circumscription of a monophyletic family for the tapaculos (Aves: Rhinocryptidae): Psiloramphus in and Melanopareia out

   • Per G. P. Ericson
   • Storrs L. Olson
   • Jon Fjeldså

   Original Article 14 October 2009 Pages: 337 - 345

   

10. Leucocytes in adult burrowing parrots Cyanoliseus patagonus in the wild: variation between contrasting breeding seasons, gender, and individual condition

    • Andreas Plischke
    • Petra Quillfeldt
    • Juan F. Masello

    Original Article Open access 11 October 2009 Pages: 347 - 354

    

11. The effect of benthic prey abundance and size on red knot (Calidris canutus) distribution at an alternative migratory stopover site on the US Atlantic Coast

    • Jonathan B. Cohen
    • Sarah M. Karpanty
    • Barry R. Truitt

    Original Article 08 October 2009 Pages: 355 - 364

    

12. On the extinction of the Dune Shearwater (Puffinus holeae) from the Canary Islands

    • Juan Carlos Rando
    • Josep Antoni Alcover

    Original Article 14 October 2009 Pages: 365 - 369

    

13. Spring passerine migrants stopping over in the Sahara are not fall-outs

    • Volker Salewski
    • Heiko Schmaljohann
    • Felix Liechti

    Original Article Open access 22 October 2009 Pages: 371 - 378

    

14. Conspecific-only experience during development reduces the strength of heterospecific song discrimination in Zebra Finches (Taeniopygia guttata): a test of the optimal acceptance threshold hypothesis

    • Dana L. M. Campbell
    • Mark E. Hauber

    Original Article 30 October 2009 Pages: 379 - 389

    

15. Ecology and Ethnobiology of the Slender-billed Grackle Quiscalus palustris

    • Paul D. Haemig

    Original Article 30 October 2009 Pages: 391 - 399

16. A new Old World vulture (Falconiformes: Accipitridae) from the Miocene of Gansu Province, northwest China

    • Zihui Zhang
    • Xiaoting Zheng
    • Lianhai Hou

    Original Article 31 October 2009 Pages: 401 - 408

    

17. Mitochondrial DNA diversity of the vulnerable Chinese Egret (Egretta eulophotes) from China

    • Xiaoping Zhou
    • Wenzhen Fang
    • Xiaolin Chen

    Original Article 13 November 2009 Pages: 409 - 414

    

18. How to capture wild passerine species to study baseline corticosterone levels

    • Frédéric Angelier
    • Christopher M. Tonra
    • Peter P. Marra

    Original Article Open access 13 November 2009 Pages: 415 - 422

    

19. Initial levels of maternally derived antibodies predict persistence time in offspring circulation

    • Jennifer L. Grindstaff

    Original Article 16 November 2009 Pages: 423 - 428

    

20. Rapid or slow moult? The choice of a primary moult strategy by immature Wood Sandpipers Tringa glareola in southern Africa

    • Magdalena Remisiewicz
    • Anthony J. Tree
    • P. Barry Taylor

    Original Article 18 November 2009 Pages: 429 - 441

    

21. Do captive waterfowl alter their behaviour patterns during their flightless period of moult?

    • Steven J. Portugal
    • Rhian Isaac
    • S. James Reynolds

    Original Article 12 November 2009 Pages: 443 - 448

    

22. Morphological sexing of passerines: not valid over larger geographical scales

    • Heike Ellrich
    • Volker Salewski
    • Wolfgang Fiedler

    Original Article Open access 27 November 2009 Pages: 449 - 458

    

23. GPS tracking devices reveal foraging strategies of Black-legged Kittiwakes

    • Jana Kotzerka
    • Stefan Garthe
    • Scott A. Hatch

    Original Article 12 December 2009 Pages: 459 - 467

    

24. Element repertoire: change and development with age in Whitethroat Sylvia communis song

    • Thorsten Johannes Skovbjerg Balsby
    • Poul Hansen

    Original Article 05 December 2009 Pages: 469 - 476

    

25. Within-season divorce in Blue Tits (Cyanistes caeruleus)

    • Alain Jacot
    • Mihai Valcu
    • Bart Kempenaers

    Original Article Open access 11 December 2009 Pages: 477 - 482

    

26. Parental provisioning behaviour in a flock-living passerine, the Vinous-throated Parrotbill Paradoxornis webbianus

    • Jin-Won Lee
    • Hee-Yoon Kim
    • Ben J. Hatchwell

    Original Article 02 December 2009 Pages: 483 - 490

    

27. Extrapair paternity in a German population of the Northern Wheatear (Oenanthe oenanthe)

    • Dagmar Kudernatsch
    • Martin Buchmann
    • Gernot Segelbacher

    Original Article 08 January 2010 Pages: 491 - 498

    

28. The numerical response of breeding Northern Saw-whet Owls Aegolius acadicus suggests nomadism

    • Jeff Bowman
    • Debbie S. Badzinski
    • Ronald J. Brooks

    Original Article 02 December 2009 Pages: 499 - 506

    

29. Video nest monitoring reveals male coloration-dependant nest predation and sex differences in prey size delivery in a bird under high sexual selection

    • Diane Colombelli-Négrel
    • Sonia Kleindorfer

    Original Article 29 November 2009 Pages: 507 - 512

    

30. A wild Marsh Warbler × Sedge Warbler hybrid (Acrocephalus palustris × A. schoenobaenus) in Norway documented with molecular markers

    • Jan T. Lifjeld
    • Gunnhild Marthinsen
    • Arild Johnsen

    Short Note 14 November 2009 Pages: 513 - 517

    

31. Response to comments by G. Mayr to my paper “Dinosaur protofeathers: pushing back the origin of feathers into the Middle Triassic?”

    • Theagarten Lingham-Soliar

    Comment 14 November 2009 Pages: 519 - 521

    

32. Response to Lingham-Soliar: dinosaur protofeathers: pushing back the origin of feathers into the Middle Triassic?

    • Gerald Mayr

    Comment 13 November 2009 Pages: 523 - 524

33. Isolation and characterization of ten microsatellite loci in Blue-footed (Sula nebouxii) and Peruvian Boobies (Sula variegata)

    • Scott A. Taylor
    • James A. Morris-Pocock
    • Vicki L. Friesen

    Technical Notes 25 November 2009 Pages: 525 - 528

34. Erratum to: Reduced blood parasite prevalence with age in the Seychelles Warbler: selective mortality or suppression of infection?

    • Kees van Oers
    • David S. Richardson
    • Jan Komdeur

    Erratum 29 October 2009 Pages: 529 - 529