K. Johnsson

Colonial breeding and nest predation in the Jackdaw Corvus monedula using old Black Woodpecker Dryocopus martius holes.

K. Johnsson, 1994 .

Characteristics and utilization of old Black Woodpecker Dryocopus martius holes by hole‐nesting species

S. Nilsson, K. Johnsson, Martin Tjernberg, 1993 .

Is avoidance by black woodpeckers of old nest holes due to predators?

S. Nilsson, K. Johnsson, Martin Tjernberg, 1991, Animal Behaviour.

The black woodpecker Dryocopus martius as a keystone species in forest

K. Johnsson, 1993 .