Age at first breeding: 3 to 5 years (Forster 1996)
Life span and survivorship: No information.
Reported diseases or body parasites: Ectoparasites include feather mites, Alloptes aschizurus and A. chionis (Watson 1975), and the feather lice Quadraceps antarcticus, Actornithophilus pauliani, and Saemundssonia sp. (Jones 1963)
The accumulation of mud and ice on the bodies of sheathbills may impair their mobility, even rendering them flightless. Obervations include birds with "mud balls" on the primaries, and birds with ice formations of several cm diameter around the tarsi (Parmelee 1992).
Population status (density or abundance): Population estimates are at 20,000; its range estimate is 27,100 km2 (BirdLife International 2010)
Factors that affect population regulation: No information.