It's all thanks to a booming vole population (aka dinner).
https://metro.co.uk/2023/05/30/tawny-owl-baby-boom-in-kielder-forest-18865288/?utm_source=dlvr.it&utm_medium=blogger
https://metro.co.uk/2023/05/30/tawny-owl-baby-boom-in-kielder-forest-18865288/?utm_source=dlvr.it&utm_medium=blogger