At age 23, Hof has developed an unusual approach to managing urban geese populations that is gaining adherents in the animal-friendly Netherlands - the first country in the world with an animal rights party in parliament.
"It's all about respect for the geese," he says.
The main problem at the Hof van Delft and most parks is that the birds have been allowed to overbreed and are clashing with the humans whose territory they share. But rather than destroying them, Hof finds new homes for the geese, dividing them along family lines to reduce the trauma of the move.