Tawny Owls, as with barn owls, are mainly monogamous but some males may be bigamous. The pair-bond lifelong and is maintained all year. Territories are established in the autumn when much calling and hooting can be heard. The male may clap his wings in display. The nest is an unlined hole in a tree or the old nest of a Crow, Magpie or Grey (Gray) Heron. The 2 to 4 rounded white eggs are laid in March or early April and incubated, starting with the first egg, by the female for 28 to 30 days. The male feeds the brood for 21 days or so and the youngsters fledge after 32 to 37 days. The Tawny Owl is single brooded.

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