𝔖 Bobbio Scriptorium
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The effect of food on laying date and clutch-size in Tengmalm's Owl Aegolius funereus

✍ Scribed by BIRGER HÖRNFELDT; ULF EKLUND


Book ID
115281350
Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
683 KB
Volume
132
Category
Article
ISSN
0019-1019

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Fluctuating food supply affects the clut
✍ Erkki Korpimäki; Harri Hakkarainen 📂 Article 📅 1991 🏛 Springer-Verlag 🌐 English ⚖ 1022 KB

In western Finland, yearly median laying dates of Tengmalm's owls varied from 14 March to 27 April during 1973-1989 and were negatively correlated with the winter densities of voles. Yearly mean clutch sizes varied from 4.0 to 6.7 and were more closely related to the spring than to the winter densit