Tawny owl     Kodukakk        Strix aluco

Klaara laid the first egg on March 15. In early morning this egg was not yet in the nest. She thus laid the second egg in daytime, let us note on March 18,

About half an hour after sunset Klaara prepares for a ”leg stretch”. To start with she calls on Klaus, if the male answers (we will not necessarily hear it) she flies out to socialize. The last evenings the egg was on its own in the nest for three hours.

Why are the eggs of hollow nesters white or pale-coloured? In dusk or dark they are easier to handle than camouflage-coloured eggs …