多瑙河三角洲
The Danube Delta horses are a population of feral horses in Romania. They live in and around Letea Forest in the Danube Delta, between the Sulina and Chilia branches of the Danube. About 4000 feral horses live in the Danube Delta, 2000 of them in the Letea nature reserve*, where on one hand, they are among the last remaining "wild" (feral) horses living at large on the European continent, but are also deemed to be a threat to the flora of the forest, including some plants on the IUCN Red List of Threatened Species.