Vol. 31 (2021)

Volume 31 comprises the continuous publishing of open access contributions in Ornis Svecica. The cover (available under the Creative Commons Attribution 4.0 International License) features an adult Red-throated Loon Gavia stellata in the morning mist on a lake during breeding season. The photo is taken by Daniel Pettersson © and illustrates this year’s first paper on the breeding and foraging of Red-throated Loons on the Holmöarna archipelago in Northern Sweden (Olsson et al. 2021).