Bird
Black Tern
Chlidonias niger · Laridae · Charadriiformes
Best monthsMay–Julmost records
Records447,621in 79 countries
Most seen inCanada107,019 records
Red ListLeast concernIUCN status
Photo: Andrej Chudý from Slovakia · CC BY-SA 2.0 · Wikimedia CommonsReport this photo · linked, not stored
About
Black Tern in brief
The black tern (Chlidonias niger) is a bird of the Laridae family — species of bird.
Across the 79 countries we cover it has 447,621 published records, most of them from Canada, Sweden and the Netherlands. It is strongly seasonal: records peak in May, June and July and fall to their lowest in February and March.
Its global conservation status is least concern on the IUCN Red List.
Records by month
All countries combined · the strongest months highlightedJFMAMJJASOND
Where & when
When to look in each country
Canada107,019 records · best May, Jun
Sweden93,180 records · best May, Jun
Netherlands64,459 records · best May, Jun
France26,367 records · best May, Aug
Denmark26,053 records · best May, Aug
Spain22,824 records · best Sep, May
United Kingdom20,529 records · best Aug, Sep
Belgium14,248 records · best May, Apr
Poland10,748 records · best May, Jun
Germany9,686 records · best May, Aug
Russia8,967 records · best May, Jun
Estonia4,330 records · best May, Jun
Ukraine3,278 records · best May, Jun
Austria3,013 records · best May, Aug
Czechia3,007 records · best May, Apr
Portugal2,674 records · best Sep, May
Namibia2,333 records · best Jan, Nov
Hungary2,111 records · best May, Jul
Bulgaria1,870 records · best May, Sep
Italy1,705 records · best May, Apr
Greece1,563 records · best May, Apr
Romania1,532 records · best May, Aug
Norway1,502 records · best May, Aug
Switzerland1,431 records · best May, Sep
Türkiye1,390 records · best May, Apr
Lithuania1,165 records · best May, Jun
Senegal1,153 records · best Oct, Apr
Finland991 records · best May, Jun
El Salvador926 records · best Dec, May
Kazakhstan891 records · best May, Jun
Slovakia711 records · best May, Apr
Morocco704 records · best Apr, Sep
Belarus681 records · best May, Jun
Serbia546 records · best May, Apr
Mongolia464 records · best Jun, May
Croatia425 records · best May, Apr
Ireland351 records · best Sep, Aug
Slovenia324 records · best May, Aug
Latvia321 records · best May, Jun
Georgia255 records · best Sep, May
Iceland232 records · best Jun, May
Algeria192 records · best Sep, Oct
Kyrgyzstan168 records · best May, Jun
Cuba135 records · best Sep, Oct
Moldova118 records · best May, Apr
Montenegro83 records · best Apr, May
North Macedonia68 records · best May, Aug
Azerbaijan66 records · best Sep, Aug
New Zealand63 records · best Feb, Jan
Albania62 records · best Apr, May
Gabon61 records · best Sep, Aug
Tunisia56 records · best Apr, Aug
Cyprus54 records · best Sep, Aug
Armenia54 records · best May, Jul
Liberia51 records · best Sep, Aug
Kuwait49 records · best Jun, Jul
Dominican Republic48 records · best Sep, Feb
Mauritania48 records · best Apr, Sep
Jamaica31 records · best Jul, Mar
Kosovo26 records · best Jun, Aug
Guinea-Bissau26 records · best Jan, Oct
Togo26 records · best Sep, May
Egypt25 records · best May, Sep
Malta24 records · best Aug, Sep
Bosnia and Herzegovina21 records · best May, Apr
Bahamas21 records · best Sep, Oct
Barbados19 records · best Oct, Jul
Libya16 records · best Sep, Jan
Luxembourg13 records · best Sep, May
Jordan11 records · best Apr, Aug
Dominica6 records · best Jun, Sep
Turkmenistan5 records · best May, Aug
Antigua and Barbuda4 records · best Sep, Jan
Seychelles3 records · best Sep, Jan
Syria3 records · best Sep, Apr
Grenada2 records · best Oct, Jan
Haiti2 records · best Aug, Oct
Cape Verde1 records · best May, Jan
São Tomé and Príncipe1 records · best Feb, Jan
Map
Where it has been recorded
Density of published records; brighter cells have more records.
Relatives
All birds
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