- Data from: Kin association during brood care in a facultatively social bird: active discrimination or byproduct of partner choice and demography?(2012-03-29) Jaatinen, Kim; Noreikiene, Kristina; Merilä, Juha; Öst, Markus; Novia University of Applied Sciences - Jaatinen, Kim; University of Helsinki - Noreikiene, Kristina; University of Helsinki - Merilä, Juha; Novia University of Applied Sciences - Öst, Markus