Royal Tern

Closest Relatives at Ostional Wildlife Refuge

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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	Ría Lagartos Biosphere Reserve	🇲🇽 Mexico	60–70%
2	Jaragua National Park	🇩🇴 Dominican Republic	60–70%
3	Paracas National Reserve	🇵🇪 Peru	30–40%
4	Celestún Biosphere Reserve	🇲🇽 Mexico	30–40%
5	Península Valdés	🇦🇷 Argentina	30–40%
6	Ostional Wildlife Refuge	🇨🇷 Costa Rica	30–40%
7	Cabo Blanco Absolute Nature Reserve	🇨🇷 Costa Rica	30–40%
8	Los Haitises National Park	🇩🇴 Dominican Republic	30–40%
9	Bahía de Loreto National Park	🇲🇽 Mexico	30–40%
10	Las Baulas Marine National Park	🇨🇷 Costa Rica	30–40%
11	Ciénaga de Zapata	🇨🇺 Cuba	20–30%
12	El Vizcaíno Biosphere Reserve	🇲🇽 Mexico	20–30%
13	Bastimentos Island National Marine Park	🇵🇦 Panama	20–30%
14	Arrecifes de Cozumel National Park	🇲🇽 Mexico	20–30%
15	Cahuita National Park	🇨🇷 Costa Rica	20–30%
16	Sian Ka'an Biosphere Reserve	🇲🇽 Mexico	20–30%
17	Utría National Natural Park	🇨🇴 Colombia	20–30%
18	Biotopo Cerro Cahuí	🇬🇹 Guatemala	10–20%
19	Coiba National Park	🇵🇦 Panama	10–20%
20	Channel Islands National Park	🇺🇸 United States	10–20%
21	Tortuguero National Park	🇨🇷 Costa Rica	10–20%
22	La Amistad International Park (Panama)	🇵🇦 Panama	10–20%
23	Everglades National Park	🇺🇸 United States	10–20%
24	Tayrona National Natural Park	🇨🇴 Colombia	10–20%
25	Machalilla National Park	🇪🇨 Ecuador	0–10%
26	Santa Rosa National Park	🇨🇷 Costa Rica	0–10%
27	Marino Ballena National Park	🇨🇷 Costa Rica	0–10%
28	Gandoca-Manzanillo Wildlife Refuge	🇨🇷 Costa Rica	0–10%
29	Corcovado National Park	🇨🇷 Costa Rica	0–10%
30	Palo Verde National Park	🇨🇷 Costa Rica	<5%
31	Piedras Blancas National Park	🇨🇷 Costa Rica	<5%
32	Soberanía National Park	🇵🇦 Panama	<5%
33	Henri Pittier National Park	🇻🇪 Venezuela	<5%
34	Main Ridge Forest Reserve	🇹🇹 Trinidad and Tobago	<5%
35	Galápagos Islands	🇪🇨 Ecuador	<5%
36	Darién National Park	🇵🇦 Panama	<5%
37	Manuel Antonio National Park	🇨🇷 Costa Rica	<5%
38	Chagres National Park	🇵🇦 Panama	<5%
39	Carara National Park	🇨🇷 Costa Rica	<5%
40	Tapantí-Macizo de la Muerte National Park	🇨🇷 Costa Rica	Insufficient data
41	Calakmul Biosphere Reserve	🇲🇽 Mexico	Insufficient data
42	Cañón del Sumidero National Park	🇲🇽 Mexico	Insufficient data
43	Cumbres de Monterrey National Park	🇲🇽 Mexico	Insufficient data
44	San Lorenzo Protected Forest	🇵🇦 Panama	Insufficient data
45	Blue and John Crow Mountains National Park	🇯🇲 Jamaica	Insufficient data
46	Caroni Swamp	🇹🇹 Trinidad and Tobago	Insufficient data
47	Lago de Yojoa	🇭🇳 Honduras	Insufficient data
48	Cerro Azul Meámbar National Park	🇭🇳 Honduras	Insufficient data
49	Pico Bonito National Park	🇭🇳 Honduras	Insufficient data
50	Parque Natural Metropolitano	🇵🇦 Panama	Insufficient data
51	Redwood National Park	🇺🇸 United States	Insufficient data
52	Arenal Volcano National Park	🇨🇷 Costa Rica	Insufficient data

Quick answers

What are the chances of seeing a Royal Tern in Ostional Wildlife Refuge?

About 35% of visitor-days record a Royal Tern sighting in Ostional Wildlife Refuge, based on 188 observer-days of citizen-science data from GBIF.

When is the best time to see Royal Tern in Ostional Wildlife Refuge?

December has the highest sighting rate for Royal Tern in Ostional Wildlife Refuge in our monthly data.