La Tour du Valat

Article

Some observations of nesting Grasshopper Warblers in west Cumbria, with particular reference to double-brooding

John Callion, Auteur

Dans British Birds (112(8) AUG 2019)

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Article

Movements of European Stonechats Saxicola torquata according to ringing recoveries

Barbara Helm, Auteur ; Wolfgang Fiedler, Auteur ; John Callion, Auteur

Dans Ardea (94(1) Spring, 2006)

Ringing recoveries of European Stonechats increased more than tenfold to 1162 since the last in-depth analysis in 1965. This paper presents a new overview over all recoveries and detailed analyses of Stonechats ringed during the breeding season [...]

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Article

Some observations of breeding European Stonechats in Cumbria

John Callion, Auteur

Dans British Birds (108(11) NOV 2015)

A long-term study of European Stonechats Saxicola rubicola in western Cumbria is summarised. Observations of incubating females revealed some hitherto unknown behavioural patterns, indicating the state of incubation by the readiness of the femal[...]

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