Bronze Shag

Bronze Shag

Leucocarbo chalconotus

Silhouette: Juan Carlos Jerí · PhyloPic

LCNTVUVulnerableENCR Endemic
Daily sighting probability ~40% · Likely
at Rakiura National Park

In 3 days ~80% in a week >90%

752 Verified sightings at Rakiura National Park From 2019 to 2026
762 In all 2 parks
May Best month
☀️ Diurnal When it's spotted

About the Bronze Shag

The Stewart Island shag (Leucocarbo chalconotus; Māori: matapo) is a species of shag found on New Zealand's South Island and Stewart Island. The Stewart Island shag has sometimes been split into two species, the Foveaux shag and the Otago shag.

The Stewart Island shag was formally described and illustrated in 1845 by the English zoologist George Gray based on a specimen collected by Percy Earl in the Otago region of New Zealand's South Island. Gray placed the new species in the genus Gracalus and coined the binomial name Gracalus chalconotus. The specific epithet is from Ancient Greek χαλκονωτος/khalkonōtos meaning "bronze-backed". The Stewart Island shag is now one of the 15 shags placed in the genus Leucocarbo, which was introduced in 1856 by the French naturalist Charles Lucien Bonaparte.

Two subspecies are recognised: The... Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Rakiura National Park 🇳🇿 New Zealand
~40%
2 Fiordland National Park 🇳🇿 New Zealand
<5%

Before you go

What are the chances of seeing a Bronze Shag in Rakiura National Park?

Likely

About 40% of wildlife watchers report a Bronze Shag sighting in Rakiura National Park on a given day, based on 752 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 20th most-seen of the 80 birds we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.

When is the best time to see a Bronze Shag in Rakiura National Park?

February and April–June

In those months about 50% of wildlife watchers report a Bronze Shag in Rakiura National Park on a given day, against about 20% in October, the lowest month.

What time of day is best to see a Bronze Shag?

Between 2 and 5 pm

Across all the parks we cover, that three-hour window holds the most Bronze Shag sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Is Rakiura National Park the best place to see a Bronze Shag?

Yes

Of the 2 parks where we can rate Bronze Shag sightings, Rakiura National Park has the highest daily chance: about 40%. Next come Fiordland National Park (New Zealand, under 5%).

Which relatives of the Bronze Shag live in Rakiura National Park?

Same family: Phalacrocoracidae

The closest relatives of the Bronze Shag that you can see in Rakiura National Park (family Phalacrocoracidae, Cormorants and Shags) are Australian Pied Cormorant (about 40%), Spotted Shag (about 40%) and Little Pied Cormorant (about 20%), with each one's daily chance of a sighting.

Where does the Bronze Shag sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Bronze Shag is recorded against all the birds logged in Rakiura National Park (752 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.

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