One bird in the hand is better than two flying.
More Dutch Proverbs:
They agree like cats and dogs.Dutch
By labour fire is got out of a stone.
Dutch
He has lost the nest-egg.
Dutch
Better have a dog for your friend than your enemy.
Dutch
The worse the wheel, the more it creaks.
Dutch
Bear patiently that which thou sufferest by thine own fault.
Dutch