Andersson, Noora, Markus Piha, Kalle Meller, Kaisa Välimäki, and Aleksi Lehikoinen. “Variation in Body Condition of Songbirds During Breeding Season in Relation to Sex, Migration Strategy and Weather”. Ornis Fennica 95, no. 2 (July 1, 2018): 70–81. Accessed December 22, 2024. https://ornisfennica.journal.fi/article/view/133931.