Gene flow and genetic admixture across a secondary contact zone between two divergent lineages of the Eurasian Green Woodpecker Picus viridis J.-M. PonsC. MassonJ. Fuchs Original Article 27 May 2019 Pages: 935 - 945
Body size and genetic variation in the White-tipped Plantcutter (Phytotoma rutila: Cotingidae) suggest ecological divergence across the Chaco–Andes dry forest belt María José Rodríguez-CajarvilleLuciano CalderónGustavo Sebastián Cabanne Original Article 05 August 2019 Pages: 947 - 961
Correction to: Body size and genetic variation in the White-tipped Plantcutter (Phytotoma rutila: Cotingidae) suggest ecological divergence across the Chaco–Andes dry forest belt María José Rodríguez-CajarvilleLuciano CalderónGustavo Sebastián Cabanne Correction 17 October 2019 Pages: 963 - 963
Shallow genetic population structure in an expanding migratory bird with high breeding site fidelity, the Western Eurasian Crane Grus grus grus Martin HaaseHenriette HöltjeAngela Schmitz Ornés Original Article 30 July 2019 Pages: 965 - 972
Species limits and biogeography of Rhynchospiza sparrows Juan I. AretaEmiliano A. DepinoIngrid Holzmann Original Article 06 August 2019 Pages: 973 - 991
Great variability in nest lining size: support for thermoregulation but not for anti-predatory adaptation hypothesis Vojtěch KubelkaMartin SládečekMiroslav Šálek Original Article Open access 27 May 2019 Pages: 993 - 1002
Differential larval phenology affects nestling condition of Green-backed Tit (Parus monticolus) in broadleaf and coniferous habitats, subtropical Taiwan Ming-Tang ShiaoMei-Chen ChuangYing Wang Original Article 27 May 2019 Pages: 1003 - 1014
Breeding sex ratios in two declining diving duck species: between-year variation and changes over six decades Hannu PöysäPentti LinkolaAntti Paasivaara Original Article Open access 10 June 2019 Pages: 1015 - 1023
Skewed sex ratios in a newly established osprey population Virginia MorandiniRoberto MurielMiguel Ferrer Original Article 20 June 2019 Pages: 1025 - 1033
Long-term fitness consequences of breeding density in starling colonies: an observational approach Daniel FuentesJuan G. RubalcabaVicente Polo Original Article 27 May 2019 Pages: 1035 - 1042
Extra-pair paternity and sperm length variation in the socially monogamous Fieldfare Turdus pilaris Oddmund KlevenAksel N. FiskeTim Schmoll Original Article 16 July 2019 Pages: 1043 - 1051
Measuring sperm swimming performance in birds: effects of dilution, suspension medium, mechanical agitation, and sperm number Emily R. A. CramerMelissah RoweArild Johnsen Original Article 22 May 2019 Pages: 1053 - 1063
Optimal central place foraging flights in relation to wind Thomas AlerstamJohan BäckmanTom J. Evans Original Article Open access 03 June 2019 Pages: 1065 - 1076
Stable isotopes reveal the common winter moult of central rectrices in a long-distance migrant songbird Frédéric JiguetKevin J. KardynalKeith A. Hobson Original Article 27 May 2019 Pages: 1077 - 1085
No detectable effect of light-level geolocators on the behaviour and fitness of a long-distance migratory seabird Nathalie KürtenOscar VedderSandra Bouwhuis Original Article 15 July 2019 Pages: 1087 - 1095
Migration pattern of Gambel’s White-crowned Sparrow along the Pacific Flyway Simeon LisovskiZoltán NémethMarilyn Ramenofsky Original Article 10 July 2019 Pages: 1097 - 1107
Habitat use by migrating Whimbrels (Numenius phaeopus) as determined by bio-tracking at a stopover site in the Yellow Sea Fenliang KuangWei WuZhijun Ma Original Article 27 June 2019 Pages: 1109 - 1119
The first comprehensive survey of habitat suitability and population size for the endangered Grande Comoro Scops Owl (Otus pauliani): implications for its conservation Mohamed Thani IbouroiNassia Ali HassaneJules Chiffard Original Article 24 July 2019 Pages: 1121 - 1132
The occurrence and density of three sympatric corvids in a Mediterranean agroecosystem explained by land use Chiatante GianpasqualeMeriggi Alberto Original Article 10 June 2019 Pages: 1133 - 1150
Sexual differences in oxidative stress in two species of Neotropical manakins (Pipridae) Andreza de Lourdes Souza GomesJosé Luiz Fernandes VieiraJosé Maria Cardoso da Silva Original Article 22 May 2019 Pages: 1151 - 1157
Melanin-based plumage ornamentation signals condition and physiological stress in the Black-headed Gull Piotr MiniasPiotr IndykiewiczTomasz Janiszewski Original Article Open access 26 July 2019 Pages: 1159 - 1169
The uropygial gland of the Eared Dove and its evolutionary history within the Columbiformes (Aves) María Cecilia ChialeJulieta CarrilClaudio Barbeito Original Article 29 July 2019 Pages: 1171 - 1181
Avian ecological epigenetics: pitfalls and promises Bernice SepersKrista van den HeuvelKees van Oers Review Open access 10 July 2019 Pages: 1183 - 1203
The physiology of stopover decisions: food, fat and zugunruhe on a Mediterranean island Sara LupiJulia SlezacekLeonida Fusani Review Open access 05 August 2019 Pages: 1205 - 1212
Sex differences in song and plumage color do not evolve through sexual selection alone: new insights from recent research J. Jordan Price Review 15 June 2019 Pages: 1213 - 1219
Coevolutionary arms race between a specialist brood parasite, the Screaming Cowbird, and its host, the Grayish Baywing María C. De MársicoCynthia A. UrsinoJuan C. Reboreda Review 06 August 2019 Pages: 1221 - 1233
