Least Tern

Closest Relatives at Calakmul 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	0–10%
4	Celestún Biosphere Reserve	🇲🇽 Mexico	0–10%
5	Arrecifes de Cozumel National Park	🇲🇽 Mexico	0–10%
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	La Amistad International Park (Panama)	🇵🇦 Panama	<5%
13	Calakmul Biosphere Reserve	🇲🇽 Mexico	Insufficient data
14	Las Baulas Marine National Park	🇨🇷 Costa Rica	Insufficient data
15	Caroni Swamp	🇹🇹 Trinidad and Tobago	Insufficient data
16	Ostional Wildlife Refuge	🇨🇷 Costa Rica	Insufficient data
17	Marino Ballena National Park	🇨🇷 Costa Rica	Insufficient data
18	Bastimentos Island National Marine Park	🇵🇦 Panama	Insufficient data
19	Corcovado National Park	🇨🇷 Costa Rica	Insufficient data
20	Cumbres de Monterrey National Park	🇲🇽 Mexico	Insufficient data
21	Acadia National Park	🇺🇸 United States	Insufficient data