Tag Archives: Black-bellied Tern

Black-bellied Tern Sterna acuticauda is listed as Near Threatened on the basis that it is inferred to be undergoing a continued decline of 20-29% over three generations, however the widespread declines and ongoing threats raise the question of whether the currently inferred rate of global population decline is correct. If the available evidence were to suggest an overall decline of at least 30% over 27 years, the species could be eligible for uplisting under the A criterion. Continue reading →