In the turbulent waters of the Danube between the Bulgarian towns of Belene and Nikopol lies a breathtakingly beautiful archipelago. Persin Island stands out among the chunks of land that seem to float in the river - it is the largest Bulgarian island..
The numbers of waterbirds in the world have been monitored since 1967. This census is deemed one of the most large-scale nature conservation events, with more than 15,000 people taking part. It is conducted simultaneously across the whole of..
