The fire-bellied toad, the approx. 4cm small fire-bellied toad (Bombina bombina) is a rarity in Schleswig-Holstein. According to the Red List, it is threatened with extinction. Remaining populations are found particularly in the hills of East Holstein. In the Schleswig-Flensburg district, there are a few isolated populations in the hills. The name comes from the red-orange spots on the belly. During mating season, the calls of the male fire-bellied toads, which last for hours, can be heard in their spawning waters. The preferred waters are mainly sunlit, long-lasting small bodies of water with dense aquatic plant growth, but also flood areas in river meadows and pools. The main reason for their greatly reduced remaining population is the construction over and drying up of small bodies of water, partly due to the falling groundwater level. The stocking of small bodies of water with fish is also causing the fire-bellied toad to dwindle. In addition, the extensive road network along migration routes endangers the survival of the animals.