Rintamäki, P. T., Ojanen, M., Pakkala, H., Tynjälä, M., & Lundberg, A. (2000). Blood parasites of juvenile Willow Tits Parus montanus during autumn migration in northern Finland. Ornis Fennica, 77(2), 83–87. Retrieved from https://ornisfennica.journal.fi/article/view/133530