Tree cull is a blast.
Ten Caledonian pines - aged between 100 and 200 years - were destroyed to increase the amount of dead wood in the forest at a Highland reserve.
The RSPB say the cull in Aber-nethy, near Aviemore, will boost the woodland's ecosystem.
Experts placed charges into pre-drilled holes to create what were "moderate" blasts. It is the first time the RSPB have resorted to such explosions.
Desmond Dugan, of Aber-nethy's Forest Lodge section, said: "It may seem ironic but dead wood is a key driving element of our forest ecosystem."