Geographical distribution of Black tern.    Breeding  Migration  Nonbreeding
Adapted from: BirdLife International. 2019. Chlidonias niger (amended version of 2018 assessment). The IUCN Red List of Threatened Species 2019: e.T22694787A155491450. https://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T22694787A155491450.en. Downloaded on 13 November 2021.
Cephas