Biology

Tawny owls feed mainly on small mammals such as voles, as well as insects. They occupy a favourite perch, dropping onto prey that passes by; inedible remains such as fur and bones in the form of 'owl pellets' gather below these perches (3). Pairs begin to form territories in the autumn; this involves much hooting and calling, and males occasionally clap their wings together in a form of display (3). Nesting usually takes place in holes in hollow trees, although abandoned crow nests may be used (3). In March or early April, between 2 and 4 white eggs are laid. These are incubated by the female for up to 30 days. The male takes charge of feeding the young, who fledge after 32-37 days (3).