Least Tern

Closest Relatives at Sian Ka'an Biosphere Reserve

See all 12 relatives Show fewer

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	10–20%
2	Jaragua National Park	🇩🇴 Dominican Republic	10–20%
3	Channel Islands National Park	🇺🇸 United States	5–10%
4	Celestún Biosphere Reserve	🇲🇽 Mexico	5–10%
5	Arrecifes de Cozumel National Park	🇲🇽 Mexico	5–10%
6	El Vizcaíno Biosphere Reserve	🇲🇽 Mexico	<5%
7	Everglades National Park	🇺🇸 United States	<5%
8	Sian Ka'an Biosphere Reserve	🇲🇽 Mexico	<5%
9	Cabo Blanco Absolute Nature Reserve	🇨🇷 Costa Rica	<5%
10	Ciénaga de Zapata	🇨🇺 Cuba	<5%
11	Tayrona National Natural Park	🇨🇴 Colombia	<5%
12	Big Cypress National Preserve	🇺🇸 United States	<5%
13	La Amistad International Park (Panama)	🇵🇦 Panama	<5%
14	Calakmul Biosphere Reserve	🇲🇽 Mexico	Insufficient data
15	Las Baulas Marine National Park	🇨🇷 Costa Rica	Insufficient data
16	Caroni Swamp	🇹🇹 Trinidad and Tobago	Insufficient data
17	Ostional Wildlife Refuge	🇨🇷 Costa Rica	Insufficient data
18	Marino Ballena National Park	🇨🇷 Costa Rica	Insufficient data
19	Bastimentos Island National Marine Park	🇵🇦 Panama	Insufficient data
20	Corcovado National Park	🇨🇷 Costa Rica	Insufficient data
21	Cumbres de Monterrey National Park	🇲🇽 Mexico	Insufficient data
22	Acadia National Park	🇺🇸 United States	Insufficient data

Quick answers

What are the chances of seeing a Least Tern in Sian Ka'an Biosphere Reserve?

About 1% of wildlife watchers report a Least Tern sighting in Sian Ka'an Biosphere Reserve, based on 29 days of visitor records from GBIF citizen-science data.

When is the best time to see Least Tern in Sian Ka'an Biosphere Reserve?

June has the highest sighting rate for Least Tern in Sian Ka'an Biosphere Reserve in our monthly data.