Comportamiento de anidación de Black Tern (Chlidonias niger) - Fotografía de stock

L 22-26cm, WS 56-62cm. commonest marsh tern, breeding in freshwater marshes with patches of low, floating vegetation, often among Black-headed Gulls for protection. Summer visitor (mainly late April-September), winters in Africa. This is a quite common Tern in the Netherlands in the described Habitats (Marsh area's). While the floating Habitats were disappearing (fields of Stratiotes) in the last decades, Nature Organizations have been experienced with artificial nests, with good results (see these Pictures).