• Nest association between two predators as a behavioral response to the low density of rodents 

      Pokrovsky, Ivan G.; Ehrich, Dorothee; Fufachev, Ivan A.; Ims, Rolf Anker; Kulikova, Olga; Sokolov, Aleksandr; Sokolova, Natalia; Sokolov, Vasiliy; Yoccoz, Nigel (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-11-04)
      Many birds nest in association with aggressive birds of other species to benefit from their protection against predators. We hypothesized that the protective effect also could extend to foraging resources, whereby the resultant resource-enriched habitats near a nest of aggressive raptors could be an alternative cause of associations between nesting bird species with non-overlapping foraging niches. ...