Chatham Shag
NameChatham Shag
Common NameChatham Shag
Scientific NameLeucocarbo onslowi
FamilyPhalacrocoracidae
Wingspan (cm)95
Length (cm)63
Weight (g)2150
Plumage DetailsAdults have glossy black plumage on the head, neck, back, and upperparts, with a contrasting pure white belly and breast. A prominent white stripe extends from the chin down the side of the neck. White patches are visible on the scapulars (wing feathers). The bare skin around the eye and lores is a vibrant orange, and the bill is pale greyish-pink.
Vocalization / CallGenerally silent when away from breeding colonies. At colonies, they produce a range of guttural grunts, croaks, and hisses, particularly during courtship displays or when disturbed.
Primary Dietpiscivore
Primary Habitatscoastal
Conservation Statuscritically-endangered
Geographic RangeEndemic to the Chatham Islands, an archipelago located east of New Zealand.
Identifying FeaturesBlack upperparts and white underparts, Bright orange bare skin on face (lores and around eye), Pale greyish-pink bill, White stripe on side of neck, White patches on wings (scapulars), Restricted range to Chatham Islands
Description
The Chatham Shag is a medium-sized, striking black and white marine bird endemic to the Chatham Islands. It is characterized by its glossy black upperparts, contrasting white underparts, and a distinctive bright orange facial patch. These shags are colonial breeders, frequently observed diving for fish and marine invertebrates in coastal waters.
