- Data from: Inter-annual variation and long-term trends in proportions of resident individuals in partially migratory birds(2016-12-28) Meller, Kalle; Vähätalo, Anssi V; Hokkanen, Tatu; Rintala, Jukka; Piha, Markus; Lehikoinen, Aleksi; University of Helsinki - Meller, Kalle; University of Jyväskylä - Vähätalo, Anssi V; Natural Resources Institute Finland - Hokkanen, Tatu; Natural Resources Institute Finland - Rintala, Jukka; University of Helsinki - Piha, Markus; University of Helsinki - Lehikoinen, Aleksi