Die Quelle (The Spring)

In the Hammock

Self-Portrait with Cupid and Death

Sea awakening

"Die Öd" View of Holzhausenpark

View from Mount Pilatus

Summer

In Memory of Orte

In the sunshine

The Rhine near Säckingen

Self-Portrait in front of a Birch Forest

Forest meadow

Knobbelzwanen op avondtrek

Herons in Landscape

Hawking in the Olden Time

Roseate Spoonbills, study for book Concealing Coloration in the Animal Kingdom

Cranes

Envol de flamants roses, étang de Vaccarès

The Water Hen

Illustration til "Halvhundrede Fabler for Børn" af Hey

Flamants

The Marsh

Hawk and Black-Game

Two curlews in a peat landscape