This 1980 Romanian miniature sheet was issued to mark the European Year of Nature Conservation ("Anul European al Ocrotirii Naturii"). It features a striking airmail stamp (Posta Aeriana) valued at 10 Lei, depicting two Great White Pelicans (Pelecanus onocrotalus) in flight—an iconic species of the Danube Delta. The background of the sheet extends the natural setting with stylized vegetation and a flock of birds in flight, reinforcing the theme of wildlife preservation. Designed by E. Palade, the sheet combines artistic finesse and environmental significance, making it a standout item for collectors of nature, aviation, and Romanian philately.