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Ornithologischer Beobachter, 119(3), September 2022
[Selection of foraging areas by Bramblings Fringilla montifringilla in mass roosts.]

Flight behaviour of nocturnal migrants above the Swiss Lowlands and the Alps compared.]

[Rare and unusual records of breeding bird species in Switzerland, 2021.]

[30 years of monitoring of Common Kingfisher Alcedo atthis and species-specific conservation measures at the Zurich stretch of the river Thur.]

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Ornithologischer Anzeiger, 60(3), August 2022
Interspecific nest site cimpetition reduces the reproductive success of Eagle Owls Bubo bubo

Natural bank development - an effective bird protection strategy