Chionis albus
The Snowy Sheathbill, *Chionis albus*, is a captivating and unique avian inhabitant of the Antarctic and sub-Antarctic regions, instantly recognizable by its entirely pure white plumage. This stout-bodied, pigeon-like bird measures approximately 34-41 cm (13-16 in) in length with a wingspan of 75-80 cm (30-31 in), and weighs between 450-800 g (16-28 oz). Its most distinctive field marks include the bare, waxy yellow-pinkish wattles around its dark eyes and a stout, conical bill with a blackis...
Found primarily in coastal areas, rocky shores, and especially abundant around penguin and seal breeding colonies at sea-level.
An opportunistic omnivore and scavenger, its diet includes carrion, faeces, eggs, chicks, marine invertebrates, algae, and human refuse, often obtained through kleptoparasitism.
Snowy Sheathbills are highly diurnal, exhibiting peak activity during daylight hours, especially around their primary food sources. They are exceptionally opportunistic foragers, employing various strategies including scavenging carrion and faeces, kleptoparasitism (stealing food directly from pe...
The breeding range of the Snowy Sheathbill encompasses the Antarctic Peninsula and numerous sub-Antarctic islands, including South Georgia, South Orkney, South Shetland, Balleny, Bouvet, Heard, MacDonald, Prince Edward, Crozet, Kerguelen, and Macquarie Islands. Following the breeding season, many...
Least Concern
- The Snowy Sheathbill is the only land bird truly native to the Antarctic continent and many sub-Antarctic islands. - They are often nicknamed 'station cats' or 'polar pigeons' by researchers due to their fearless scavenging around human settlements. - Uniquely among most birds, they can digest ...