Ornis Fennica 2017:1

Among others, Ornis Fennica 1/2017 contains the following articles: Pekka J. Lehtonen & Jyrki Lappalainen, Individual identification of Black-throated Divers (Gavia arctica); Juan Arizaga, Daniel Alonso & Alberto Castro, Are age and body condition associated with habitat quality around avian song posts? A test with male Bluethroats at a breeding site in Spain; Eva Serrano-Davies, Rafael Barrientos & Juan José Sanz, The role of nest-box density and placement on occupation rates and breeding performance: a case study with Eurasian Blue Tits; Gintare Grasyte, Saulius Rumbutis, Mindaugas Dagys, Daiva Vaitkuviene & Rimgaudas Treinys, Tawny Owl females of intermediate colour morph reproduce better and increase in a local polymorphic population; Grzegorz Olos, Is “banging” an antipredator behavior in Common Swift (Apus apus)?