Gänsesäger Tyrol

Gänsesäger favour clear, often fast-flowing rivers with gravel beds together with natural lakes and tree-lined coastlines. As a cavity-nesting duck, the species depends on old trees with suitable holes near water and readily accepts purpose-built nest boxes, which conservation groups install along many waterways. In Germany the bird occurs both as a slowly increasing breeding species and, in larger numbers, as a winter visitor. Any hunting use is governed strictly by current state law and local regulation.

The Gänsesäger is a committed piscivore. It dives actively, often scans the water with its head submerged and seizes small fish with its toothed bill. Exactly this specialisation puts the species at the centre of long-running conflicts with angling associations and pond fisheries, especially where stocked trout, grayling or other valued fish are concerned. Debates around scaring, derogation permits and the inclusion of the Gänsesäger in the hunting law have been controversial across several regions for years.

For proper identification, hunters distinguish Gänsesäger from the smaller Mittelsäger (Red-breasted Merganser) and the still smaller Zwergsäger (Smew). The Common Merganser is clearly the largest of the three sawbills and shows a smooth, dark green-glossed head without the spiky double crest of the Mittelsäger, while the Zwergsäger is markedly smaller with a shorter bill. The species is listed as specially protected under the Federal Nature Conservation Act; closed seasons, open seasons and protected-area rules at the local level remain decisive.