Chatham Shag

Leucocarbo onslowi

Critically Endangered · IUCN Red List

CRCritically EndangeredEndemicFishMarinePlatform nestHuge · 2.1 kg

ID tip

An adult Chatham Islands shag is 63 cm (25 in) in length and weighs around 1,790–2,400 g (63–85 oz). It is a large pied shag with a white throat, breast, belly and patches on the scapulars of the wings, and black or black-brown elsewhere. When breeding the head and hind-neck have a blue metallic sheen, the wings and mantle have a greenish sheen and the rest of the black areas have a purplish-blue sheen. The head has a prominent crest and there are white filoplumes on the neck. Adults have a red gular sac and orange-red caruncles on the face and the gape of the mouth.

Text from Wikipedia, licensed CC BY-SA 4.0.

When to see the Chatham Shag

One bar for each month. Filled bars are the 7 months with records; pale bars are months with none. The wide bar is December, the month with the most records.

Where to see the Chatham Shag

Regular range

The map shades 1 country with regular records. Everything unshaded has no records. Countries are listed below the map.

About the Chatham Shag

The Chatham Islands shag, also known as the Chatham shag, is a species of bird in the cormorant and shag family, Phalacrocoracidae. It is endemic to the Chatham Islands of New Zealand. For a long time the species was placed in the genus Phalacrocorax; today it is mostly placed with the other blue-eyed shags of New Zealand and Antarctica in the genus Leucocarbo. Its closest relative is the Otago shag of South Island.

Text adapted from Wikipedia, licensed CC BY-SA 4.0.

Easily confused with

Learn the Chatham Shag in the BeakBrain App

Photo and call practice. Coming soon to iPhone and Android.

Play today's Daily Bird

Every photo and recording on this page is credited to its author under the licence shown. Spotted a problem with this page, or have a better photo? Contribute.