Crested Tern

Crested Tern

Thalasseus bergii

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
0–10% · With luck
overall probability at Royal National Park

📅 Monthly Probability

0–10
Jan
0–10
Feb
10–20
Mar
10–20
Apr
0–10
May
10–20
Jun
10–20
Jul
0–10
Aug
<5
Sep
<5
Oct
0–10
Nov
<5
Dec

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Noosa National Park 🇦🇺 Australia
40–50%
2 Freycinet National Park 🇦🇺 Australia
30–40%
3 Wilsons Promontory National Park 🇦🇺 Australia
20–30%
4 iSimangaliso Wetland Park 🇿🇦 South Africa
20–30%
5 Table Mountain National Park 🇿🇦 South Africa
20–30%
6 Booderee National Park 🇦🇺 Australia
10–20%
7 Garden Route National Park 🇿🇦 South Africa
10–20%
8 Great Otway National Park 🇦🇺 Australia
10–20%
9 Bali Barat National Park 🇮🇩 Indonesia
10–20%
10 Daintree National Park 🇦🇺 Australia
10–20%
11 Royal National Park 🇦🇺 Australia
0–10%
12 Yala National Park 🇱🇰 Sri Lanka
<5%
13 Addo Elephant National Park 🇿🇦 South Africa
<5%
14 Tsavo East National Park 🇰🇪 Kenya
<5%
15 Taroko National Park 🇹🇼 Taiwan
<5%
16 Cradle Mountain-Lake St Clair National Park 🇦🇺 Australia
Insufficient data
17 Springbrook National Park 🇦🇺 Australia
Insufficient data
18 Kerinci Seblat National Park 🇮🇩 Indonesia
Insufficient data
19 Kinabatangan Wildlife Sanctuary 🇲🇾 Malaysia
Insufficient data
20 Kinabalu Park 🇲🇾 Malaysia
Insufficient data

Quick answers

What are the chances of seeing a Crested Tern in Royal National Park?

About 7% of visitor-days record a Crested Tern sighting in Royal National Park, based on 233 observer-days of citizen-science data from GBIF.

When is the best time to see Crested Tern in Royal National Park?

June has the highest sighting rate for Crested Tern in Royal National Park in our monthly data.

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