 Besides the Vardim oak, a specific hygrophile type of summer oak, other types of oak and elm can be observed on Vardim Island, as well as the white willow, white poplar, black acacia, black poplar, snowflake, etc.According to the Bulgarian Society for the Protection of Birds, the island is one of the five most important nesting areas in the country for the great cormorant, the black-crowned night heron and the common spoonbill, making it a site of international ornithological importance.A total of 21 nationally protected species nidificate on the island.