Nest of L. flavus with burrow in Vrachanski Balkan Nature Park  
  Part of: Kachamakova M, Antonova V, Koshev Y (2019) The role of ant nests in European ground squirrel’s (Spermophilus citellus) post-reintroduction adaptation in two Bulgarian mountains. Biodiversity Data Journal 7: e38292. https://doi.org/10.3897/BDJ.7.e38292