Breeding performance of the Fieldfare Turdus pilaris in the subalpine birch zone in southern Lapland: a 20 year study

• Published in: Ornis Svecica
• Main Authors: Arheimer, Ola, Svensson, Sören
• Format: Article in Journal/Newspaper
• Language: English
• Published: BirdLife Sweden 2008
• Subjects: breeding biology; egg-laying time; breeding success; population studies; population demographics; predator-prey interaction; häckningsframgång; äggläggningstid; predator-byte interaktion; häckningsbiologi; populationsstudier; populationsdemografi; interaktion mellan predator och byte; Lappland; Lapland
• Online Access: https://journals.lub.lu.se/os/article/view/22679; https://doi.org/10.34080/os.v18.22679

A Fieldfare population, on average c. 160 pairs, was studied in subalpine birch forest in southern Lapland (c. 66°N; 500–600 m.a.s.l.) in 1983–2002. Onset of egg-laying showed no temporal trend, consistent with absence of spring temperature trend. Eggs were laid with an interval of c. 21 hours and 4...