Resolving disputed subspecies distribution limits, and revealing intraspecific intergradation, in the Common Redstart Phoenicurus phoenicurus using citizen science and museum data Nicolas MartinezGuy M. KirwanManuel Schweizer Original Article Open access 13 August 2022 Pages: 1 - 12
Species limits and biogeography of the White-browed Tapaculo (Scytalopus superciliaris) complex and the Puna Tapaculo (S. simonsi) Juan I. AretaDiego L. Monteleone Original Article 17 August 2022 Pages: 13 - 35
The role of ecological and geographical drivers of lineage diversification in the Squirrel cuckoo Piaya cayana in Mexico: a mitochondrial DNA perspective Luis A. Sánchez-GonzálezHéctor CayetanoAdolfo G. Navarro-Sigüenza Original Article 15 August 2022 Pages: 37 - 53
Disjunct resident population of Melodious Lark Mirafra cheniana discovered in East Africa Brian W. FinchR. Stratton HatfieldPer Alström Original Article Open access 22 August 2022 Pages: 55 - 71
Migration routes, high-use areas, and network connectivity across the annual cycle of an arctic seabird Carrie E. GrayBrian J. Olsen Original Article 16 August 2022 Pages: 73 - 84
Inter and intra-population variability of the migratory behaviour of a short-distance partial migrant, the Eurasian Stone-curlew Burhinus oedicnemus (Charadriiformes, Burhinidae) Valentina FalchiGiulia CerritelliDimitri Giunchi Original Article Open access 29 September 2022 Pages: 85 - 100
Margins matter: the importance of field margins as avian brood-rearing habitat in an intensive agricultural landscape Heidi KrügerKim JaatinenPetri Nummi Original Article Open access 21 September 2022 Pages: 101 - 114
Nest-site selection of the Iberian Green Woodpecker (Picus sharpei) in three biogeographical regions Diego VillanúaAlberto LizarragaXabier Cabodevilla Original Article 28 September 2022 Pages: 115 - 123
Bird breeding season linked to sunshine hours in a marginally seasonal equatorial climate Laura BermanDavid LiFrank Rheindt Original Article 07 September 2022 Pages: 125 - 138
Incubation scheduling by African Black Oystercatchers: effects of weather, tide phase, and time of day Bukola D. A. Braimoh-AzakiSusan J. CunninghamWill Cresswell Original Article 29 September 2022 Pages: 139 - 149
Breeding biology of the White-throated Kingfisher Halcyon smyrnensis smyrnensis, with emphasis on color and vocalization Dana Sela-KleinYizhar LavnerYoni Vortman Original Article 14 October 2022 Pages: 151 - 161
Both morphological and behavioral traits predict interspecific social dominance in birds Gavin M. LeightonDominique LamourEliot T. Miller Original Article 28 September 2022 Pages: 163 - 169
Effects of fixatives and storage duration on avian sperm morphology Gaute GrønstølMarie DanielsenJan T. Lifjeld Original Article Open access 08 September 2022 Pages: 171 - 181
The Yellow-breasted Barbet (Trachyphonus margaritatus) introduces vocal duets and choruses with a specific multimodal signal, during territorial advertisement Mathieu Mahamoud IssaBożena SikoraTomasz S. Osiejuk Original Article Open access 09 September 2022 Pages: 183 - 192
Slow song syllable rates provoke stronger male territorial responses in Eurasian Reed Warblers (Acrocephalus scirpaceus) Herbert HoiAlžbeta DarolováJán Krištofík Original Article 28 September 2022 Pages: 193 - 202
The effect of daylight exposure on the immune response and body condition of Great Tit nestlings Paweł PodkowaAdrian Surmacki Original Article Open access 16 September 2022 Pages: 203 - 216
Eggshell microbiome as a potential microbial reservoir in a cavity nesting bird Felipe Campos-CerdaRoxana TorresBibiana Montoya Original Article 27 October 2022 Pages: 217 - 222
Male plumage signal expression is related to feather corticosterone concentration in the Pied Flycatcher Ficedula hypoleuca Juan MorenoJimena López-Arrabé Original Article Open access 12 October 2022 Pages: 223 - 232
Community engagement and data quality: best practices and lessons learned from a citizen science project on birdsong Denise JäckelKim G. MortegaSilke L. Voigt-Heucke Original Article Open access 13 October 2022 Pages: 233 - 244
Lowering the cost of citizen science: can we reduce the number of sampling visits in a constant ringing effort-based monitoring program? Juan ArizagaAriñe CrespoAgurtzane Iraeta Original Article 29 October 2022 Pages: 245 - 251