Introduction
The following photos show five tree cavities with nesting Tawny Owls Strix aluco. All are in a 2.8km section of road near Szczecin in Poland, where this species is known as "Puszczyk". All images © Przemysław Wójcik.
Nest site 1

Nest site number 1
Nest site 2

Nest site number 2

Occupant of nest site 2
Nest site 3

Nest site number 3

Occupant of nest site 3
Nest site 4

Nest site number 4

Occupant of nest site 4
Nest site 5

Nest site number 5

Occupant of nest site 5