Genus

Crested Terns

Thalasseus

6 species in our catalog · found in 86 parks

Species in this group

Each card shows the species at its best park — tap for the full profile

Thalasseus maximus

60–70% · Likely

Thalasseus sandvicensis

50–60% · Likely

Thalasseus elegans

40–50% · Likely

Thalasseus bergii

40–50% · Likely

Thalasseus acuflavidus

Insufficient data

Thalasseus bengalensis

0–10% · With luck

📅 Monthly Probability

Probability-weighted average across the group's species

20–30

Jan

20–30

Feb

20–30

Mar

20–30

Apr

20–30

May

20–30

Jun

20–30

Jul

20–30

Aug

20–30

Sep

20–30

Oct

20–30

Nov

30–40

Dec

🕐 When They're Spotted

When the group's species are recorded (aggregated)

Where to see Crested Terns

Worldwide records of this group (human observations from 2019 onwards, GBIF). Pins mark our parks — tap one for the chance of seeing at least one species of the group there.

Parks Ranked

Chance of seeing at least one species of the group · number of its species present

#	Park	Country	Species	P(≥1)
1	Ría Lagartos Biosphere Reserve	🇲🇽 Mexico	3	80–90%
	Royal Tern			60–70%
	Sandwich Tern			50–60%
	Cabot's Tern			Insufficient data
2	Paracas National Reserve	🇵🇪 Peru	4	70–80%
	Elegant Tern			40–50%
	Royal Tern			30–40%
	Sandwich Tern			20–30%
	Cabot's Tern			Insufficient data
3	Celestún Biosphere Reserve	🇲🇽 Mexico	2	60–70%
	Sandwich Tern			40–50%
	Royal Tern			30–40%
4	Península Valdés	🇦🇷 Argentina	3	50–60%
	Royal Tern			30–40%
	Sandwich Tern			20–30%
	Cabot's Tern			Insufficient data
5	Namib-Naukluft National Park	🇳🇦 Namibia	3	40–50%
	Crested Tern			30–40%
	Sandwich Tern			10–20%
	Elegant Tern			Insufficient data
6	Noosa National Park	🇦🇺 Australia	2	40–50%
	Crested Tern			40–50%
	Lesser Crested Tern			Insufficient data
7	Las Baulas Marine National Park	🇨🇷 Costa Rica	3	40–50%
	Royal Tern			30–40%
	Sandwich Tern			10–20%
	Elegant Tern			0–10%
8	Cabo Blanco Absolute Nature Reserve	🇨🇷 Costa Rica	3	30–40%
	Royal Tern			30–40%
	Elegant Tern			0–10%
	Sandwich Tern			<5%
9	Ostional Wildlife Refuge	🇨🇷 Costa Rica	3	30–40%
	Royal Tern			30–40%
	Elegant Tern			<5%
	Sandwich Tern			<5%
10	Los Haitises National Park	🇩🇴 Dominican Republic	2	30–40%
	Royal Tern			30–40%
	Sandwich Tern			0–10%
11	Bahía de Loreto National Park	🇲🇽 Mexico	2	30–40%
	Royal Tern			30–40%
	Elegant Tern			0–10%
12	Bastimentos Island National Marine Park	🇵🇦 Panama	3	30–40%
	Royal Tern			20–30%
	Cabot's Tern			Insufficient data
	Sandwich Tern			<5%
13	Freycinet National Park	🇦🇺 Australia	1	30–40%
	Crested Tern			30–40%
14	iSimangaliso Wetland Park	🇿🇦 South Africa	3	30–40%
	Crested Tern			20–30%
	Sandwich Tern			0–10%
	Lesser Crested Tern			0–10%
15	Channel Islands National Park	🇺🇸 United States	2	30–40%
	Elegant Tern			20–30%
	Royal Tern			10–20%
16	Arrecifes de Cozumel National Park	🇲🇽 Mexico	3	30–40%
	Royal Tern			20–30%
	Sandwich Tern			0–10%
	Cabot's Tern			Insufficient data
17	El Vizcaíno Biosphere Reserve	🇲🇽 Mexico	2	30–40%
	Royal Tern			20–30%
	Elegant Tern			<5%
18	Ciénaga de Zapata	🇨🇺 Cuba	2	30–40%
	Royal Tern			20–30%
	Sandwich Tern			<5%
19	Table Mountain National Park	🇿🇦 South Africa	3	20–30%
	Crested Tern			20–30%
	Sandwich Tern			0–10%
	Elegant Tern			Insufficient data
20	Sian Ka'an Biosphere Reserve	🇲🇽 Mexico	3	20–30%
	Royal Tern			20–30%
	Sandwich Tern			0–10%
	Cabot's Tern			Insufficient data
21	Wilsons Promontory National Park	🇦🇺 Australia	1	20–30%
	Crested Tern			20–30%
22	Cahuita National Park	🇨🇷 Costa Rica	2	20–30%
	Royal Tern			20–30%
	Sandwich Tern			Insufficient data
23	Biotopo Cerro Cahuí	🇬🇹 Guatemala	2	20–30%
	Royal Tern			10–20%
	Sandwich Tern			0–10%
24	Utría National Natural Park	🇨🇴 Colombia	3	20–30%
	Royal Tern			20–30%
	Sandwich Tern			Insufficient data
	Elegant Tern			Insufficient data
25	Coiba National Park	🇵🇦 Panama	3	20–30%
	Royal Tern			10–20%
	Sandwich Tern			<5%
	Elegant Tern			Insufficient data
26	Garden Route National Park	🇿🇦 South Africa	2	20–30%
	Crested Tern			10–20%
	Sandwich Tern			0–10%
27	La Amistad International Park (Panama)	🇵🇦 Panama	3	10–20%
	Royal Tern			10–20%
	Sandwich Tern			0–10%
	Cabot's Tern			Insufficient data
28	Booderee National Park	🇦🇺 Australia	1	10–20%
	Crested Tern			10–20%
29	Tayrona National Natural Park	🇨🇴 Colombia	2	10–20%
	Royal Tern			10–20%
	Sandwich Tern			0–10%
30	Bali Barat National Park	🇮🇩 Indonesia	2	10–20%
	Crested Tern			10–20%
	Lesser Crested Tern			<5%
31	Tortuguero National Park	🇨🇷 Costa Rica	3	10–20%
	Royal Tern			10–20%
	Sandwich Tern			<5%
	Elegant Tern			Insufficient data
32	Everglades National Park	🇺🇸 United States	3	10–20%
	Royal Tern			10–20%
	Cabot's Tern			<5%
	Sandwich Tern			<5%
33	Daintree National Park	🇦🇺 Australia	2	10–20%
	Crested Tern			10–20%
	Lesser Crested Tern			<5%
34	Machalilla National Park	🇪🇨 Ecuador	3	10–20%
	Royal Tern			0–10%
	Elegant Tern			0–10%
	Sandwich Tern			<5%
35	Great Otway National Park	🇦🇺 Australia	1	10–20%
	Crested Tern			10–20%
36	Santa Rosa National Park	🇨🇷 Costa Rica	3	10–20%
	Royal Tern			0–10%
	Elegant Tern			<5%
	Sandwich Tern			<5%
37	Marino Ballena National Park	🇨🇷 Costa Rica	3	10–20%
	Royal Tern			0–10%
	Sandwich Tern			<5%
	Elegant Tern			<5%
38	Wadden Sea National Park	🇩🇪 Germany	1	10–20%
	Sandwich Tern			10–20%
39	Main Ridge Forest Reserve	🇹🇹 Trinidad and Tobago	2	10–20%
	Sandwich Tern			Insufficient data
	Royal Tern			<5%
40	Corcovado National Park	🇨🇷 Costa Rica	3	0–10%
	Royal Tern			0–10%
	Sandwich Tern			<5%
	Elegant Tern			<5%
41	Yala National Park	🇱🇰 Sri Lanka	3	0–10%
	Crested Tern			<5%
	Lesser Crested Tern			<5%
	Sandwich Tern			Insufficient data
42	Gandoca-Manzanillo Wildlife Refuge	🇨🇷 Costa Rica	2	0–10%
	Royal Tern			0–10%
	Sandwich Tern			<5%
43	Royal National Park	🇦🇺 Australia	1	0–10%
	Crested Tern			0–10%
44	Piedras Blancas National Park	🇨🇷 Costa Rica	3	0–10%
	Royal Tern			<5%
	Sandwich Tern			<5%
	Elegant Tern			<5%
45	Snowdonia National Park	🇬🇧 United Kingdom	1	0–10%
	Sandwich Tern			0–10%
46	Big Cypress National Preserve	🇺🇸 United States	2	0–10%
	Royal Tern			0–10%
	Sandwich Tern			<5%
47	Biebrza National Park	🇵🇱 Poland	1	0–10%
	Sandwich Tern			Insufficient data
48	Tsavo East National Park	🇰🇪 Kenya	2	0–10%
	Lesser Crested Tern			0–10%
	Crested Tern			<5%
49	Tapantí-Macizo de la Muerte National Park	🇨🇷 Costa Rica	1	0–10%
	Royal Tern			Insufficient data
50	Carara National Park	🇨🇷 Costa Rica	4	0–10%
	Cabot's Tern			Insufficient data
	Royal Tern			<5%
	Sandwich Tern			<5%
	Elegant Tern			Insufficient data
51	Palo Verde National Park	🇨🇷 Costa Rica	3	<5%
	Royal Tern			<5%
	Elegant Tern			Insufficient data
	Sandwich Tern			Insufficient data
52	Doñana National Park	🇪🇸 Spain	2	<5%
	Sandwich Tern			<5%
	Lesser Crested Tern			Insufficient data
53	Calakmul Biosphere Reserve	🇲🇽 Mexico	1	<5%
	Royal Tern			Insufficient data
54	Cañón del Sumidero National Park	🇲🇽 Mexico	1	<5%
	Royal Tern			Insufficient data
55	Soberanía National Park	🇵🇦 Panama	3	<5%
	Royal Tern			<5%
	Sandwich Tern			<5%
	Elegant Tern			Insufficient data
56	Addo Elephant National Park	🇿🇦 South Africa	2	<5%
	Sandwich Tern			<5%
	Crested Tern			<5%
57	San Lorenzo Protected Forest	🇵🇦 Panama	2	<5%
	Royal Tern			Insufficient data
	Sandwich Tern			Insufficient data
58	Cumbres de Monterrey National Park	🇲🇽 Mexico	2	<5%
	Royal Tern			Insufficient data
	Elegant Tern			<5%
59	Darién National Park	🇵🇦 Panama	2	<5%
	Royal Tern			<5%
	Sandwich Tern			<5%
60	Henri Pittier National Park	🇻🇪 Venezuela	2	<5%
	Royal Tern			<5%
	Sandwich Tern			Insufficient data
61	Manuel Antonio National Park	🇨🇷 Costa Rica	3	<5%
	Royal Tern			<5%
	Elegant Tern			Insufficient data
	Sandwich Tern			Insufficient data
62	Galápagos Islands	🇪🇨 Ecuador	2	<5%
	Royal Tern			<5%
	Elegant Tern			<5%
63	Chagres National Park	🇵🇦 Panama	1	<5%
	Royal Tern			<5%
64	Taroko National Park	🇹🇼 Taiwan	1	<5%
	Crested Tern			<5%
65	Blue and John Crow Mountains National Park	🇯🇲 Jamaica	1	<5%
	Royal Tern			Insufficient data
66	Lake Nakuru National Park	🇰🇪 Kenya	1	<5%
	Lesser Crested Tern			<5%
67	Wilpattu National Park	🇱🇰 Sri Lanka	1	<5%
	Lesser Crested Tern			Insufficient data
68	Cradle Mountain-Lake St Clair National Park	🇦🇺 Australia	1	<5%
	Crested Tern			Insufficient data
69	Fertő-Hanság National Park	🇭🇺 Hungary	1	<5%
	Sandwich Tern			<5%
70	Kerinci Seblat National Park	🇮🇩 Indonesia	2	<5%
	Crested Tern			Insufficient data
	Lesser Crested Tern			Insufficient data
71	Redwood National Park	🇺🇸 United States	2	<5%
	Elegant Tern			<5%
	Royal Tern			Insufficient data
72	Ankarafantsika National Park	🇲🇬 Madagascar	1	<5%
	Lesser Crested Tern			Insufficient data
73	Springbrook National Park	🇦🇺 Australia	1	<5%
	Crested Tern			Insufficient data
74	Caroni Swamp	🇹🇹 Trinidad and Tobago	1	<5%
	Royal Tern			Insufficient data
75	Parque Natural Metropolitano	🇵🇦 Panama	2	<5%
	Sandwich Tern			Insufficient data
	Royal Tern			Insufficient data
76	Cerro Azul Meámbar National Park	🇭🇳 Honduras	1	<5%
	Royal Tern			Insufficient data
77	Lago de Yojoa	🇭🇳 Honduras	1	<5%
	Royal Tern			Insufficient data
78	Białowieża National Park	🇵🇱 Poland	1	<5%
	Sandwich Tern			Insufficient data
79	Pico Bonito National Park	🇭🇳 Honduras	1	<5%
	Royal Tern			Insufficient data
80	Ranomafana National Park	🇲🇬 Madagascar	1	<5%
	Lesser Crested Tern			Insufficient data
81	Kinabatangan Wildlife Sanctuary	🇲🇾 Malaysia	1	<5%
	Crested Tern			Insufficient data
82	Pyrénées National Park	🇫🇷 France	1	<5%
	Sandwich Tern			<5%
83	Cairngorms National Park	🇬🇧 United Kingdom	1	<5%
	Sandwich Tern			Insufficient data
84	Kinabalu Park	🇲🇾 Malaysia	1	<5%
	Crested Tern			Insufficient data
85	Arenal Volcano National Park	🇨🇷 Costa Rica	1	<5%
	Royal Tern			Insufficient data
86	Olympic National Park	🇺🇸 United States	1	<5%
	Elegant Tern			Insufficient data

Crested Terns

Species in this group

Royal Tern

Sandwich Tern

Elegant Tern

Crested Tern

Cabot's Tern

Lesser Crested Tern

📅 Monthly Probability

🕐 When They're Spotted

Where to see Crested Terns

Parks Ranked