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Species · Birds

Black Tern

Chlidonias niger

10,051Records since 2000
SeptemberPeak month
89Counties with records
Least ConcernIUCN Red List

When it is recorded

Jan1
Feb0
Mar1
Apr979
May2,152
Jun540
Jul468
Aug2,685
Sep2,843
Oct351
Nov28
Dec2

GBIF records by month, 2000–2025 (all years combined).

Where it is recorded

#CountyNationRecordsShare
1Cambridgeshire England901
2Kent England876
3Rutland England714
4Norfolk England426
5Surrey England419
6East Riding of Yorkshire England419
7Lincolnshire England373
8Suffolk England329
9Essex England280
10Oxfordshire England272
11Thurrock England180
12Bath and North East Somerset England156
13Somerset England149
14Warrington England134
15Cornwall England127
9,612 England179 Scotland154 Wales25 Northern Ireland

Records per county (GADM level 2) and per nation; one record can count towards several areas. 89 counties in all.

About this species

Records since 2000
10,051
Peak month
September
Counties with records
89
IUCN Red List
Least Concern
Scientific name
Chlidonias niger
Group
Birds
NBN Atlas records since 2000
1,191
Conservation designations
Birds Directive, Bern Convention, Wildlife and Countryside Act 1981, Convention on Migratory Species, GB Red List (2001 IUCN criteria)
Kingdom
Animalia
Phylum
Chordata
Class
Aves
Order
Charadriiformes
Family
Laridae
Genus
Chlidonias
Name with authority
Chlidonias niger (Linnaeus, 1758)
Described
1758
Contributing datasets
15

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q27215 · GBIF 2481119