Specialist or opportunist—the diet of the European bee-eater (Merops apiaster) Hans-Valentin BastianAnita Bastian Review 03 May 2023 Pages: 729 - 747
Narrow-beaked trogons from the early Eocene London Clay of Walton-on-the-Naze (Essex, UK) Gerald MayrVanesa L. De PietriAndrew C. Kitchener Original Article Open access 05 May 2023 Pages: 749 - 764
Dynamics in spatial use by Ospreys (Pandion haliaetus) during the breeding season revealed by GPS tracking Bernd-Ulrich MeyburgDietrich RoepkeDaniel Holte Original Article Open access 18 April 2023 Pages: 765 - 776
The ethnomedicinal use of vultures by traditional health practitioners in KwaZulu-Natal, South Africa Nomthandazo S. ManqeleS. A. Jeanetta SelierColleen T. Downs Original Article Open access 19 May 2023 Pages: 777 - 788
Vulture perceptions in a socio-ecological system: a case study of three protected areas in KwaZulu-Natal, South Africa Nomthandazo S. ManqeleS. A. Jeanetta SelierColleen T. Downs Original Article Open access 21 May 2023 Pages: 789 - 801
Dynamics of stress-induced changes of leukocyte profile in Great Tits: testing effect of age Diana PolikarpovaIrina DeminaArseny Tsvey Original Article 08 April 2023 Pages: 803 - 813
Male but not female Kentish plovers Charadrius alexandrinus modulate foraging behaviour according to tide during incubation Jacopo G. CecereMarco PiconeLorenzo Serra Original Article 27 April 2023 Pages: 815 - 823
Incubation behaviour of the Common Ringed Plover Charadrius hiaticula at different latitudes Kees WandersMohammed AlmalkiTamás Székely Original Article Open access 10 May 2023 Pages: 825 - 833
Bursts of white noise trigger song in domestic Canaries Hana GotoLéna de FramondHenrik Brumm Original Article Open access 18 April 2023 Pages: 835 - 844
Guess who? Evaluating individual acoustic monitoring for males and females of the Tawny Pipit, a migratory passerine bird with a simple song Javier Oñate-CasadoMichal PortešTereza Petrusková Original Article Open access 04 April 2023 Pages: 845 - 858
Stopover-site feather isotopes uncover African non-breeding grounds of migratory passerines Tal RazYosef KiatTakuya Iwamura Original Article 14 May 2023 Pages: 859 - 873
Timing of migration and African non-breeding grounds of geolocator-tracked European Pied Flycatchers: a multi-population assessment Peter AdamíkStanislav BurešMartins Briedis Original Article Open access 23 June 2023 Pages: 875 - 886
Irruptions of Bohemian Waxwings in relation to population density and food availability Svein Dale Original Article Open access 28 June 2023 Pages: 887 - 899
The demography of the White-headed Petrel at Mayes Island, Kerguelen Christophe BarbraudDominique JoubertKarine Delord Original Article 22 June 2023 Pages: 901 - 912
How common is hybridization in birds? Jente Ottenburghs Original Article Open access 07 June 2023 Pages: 913 - 920
Brood survival in the Red-backed Shrike Lanius collurio in eastern Poland Artur GolawskiEmilia MrozPiotr Zduniak Original Article Open access 29 June 2023 Pages: 921 - 929
Leg coloration is associated with habitat type and social environment in swallows and martins Masaru HasegawaEmi Arai Original Article 11 May 2023 Pages: 931 - 942
Amur Honeysuckle (Lonicera maackii) increases abundance and diversity of shrub-dwelling arthropods and birds in forest edge habitat L. Tucker SerniakPaige RohloffCherokee C. A. Agnew Original Article 29 March 2023 Pages: 943 - 951