"We come from the land of the ice and snow,
From the septic north where the poxes flow..."
- Extract of a Nielglen Crows fan chant

Beyond the icy lands of Norsca, in the hinterlands of the Chaos Wastes, there are some amongst the ignorant and wicked tribes who reside there who worship Nurgle openly and with pride.
To the majority of these ignorant fools, the Lord of Decay is known as Nielglen.

Nielglen is depicted as a great carrion crow: gigantic, flightless and near skeletal, its rotting flesh is riven with all manner of diseases, and maggots writhe in its belly.

This is the form in which Nielglen chooses to show himself to the tribes of the north. The tribes dedicated to Nielglen believe that the flight of a crow tells of death, of eyes without life, of a slow lingering end caused by agonising wounds. The players of the Crows are a grim people, finding the fulfilment they seek in the violence of Blood Bowl.