Like the more northern Rufous-bellied Seedsnipe (Attagis gayi) the White-bellied Seedsnipe is a bulky, short-legged and slow moving species of seedsnipe that ecologically is like a South American replacement for the ptarmigans (Lagopus sp.). The White-bellied nests only in rocky alpine regions in the far south of Chile and Argentina, where conditions can be cold, extremely windy and harsh even in the middle of summer. Breeding habitats are rocky but also have an abundance of short alpine vegetation, presumably providing food or habitat for the food taken by these birds. Very little is known about their diet or breeding habits. In breeding areas their density is low, with pairs taking a rather large area of habitat. In winter, the White-bellied Seesnipe descends to the Patagonian steppe, and here they may be found in flocks of up to 40 individuals.