Bulgarian Philatelic Sets: Birds of Prey and Woodpeckers Series

This is a collection of eleven Bulgarian postage stamps displayed in two horizontal philatelic stock rows. The top row consists of five stamps featuring various herons and storks, while the bottom row includes six stamps depicting different species of woodpeckers. These stamps were issued by 'НР България ПОЩА' (People's Republic of Bulgaria Post) during the late 20th century, likely the 1970s or 1980s based on the aesthetic and printing style. Each stamp is printed on perforated paper using multi-color lithography. The top series includes denominations of 5, 8, 13, 25, and 51 (stotinki), while the bottom series shows values of 1, 2, 3, 13, 23, and 43. The illustrations are stylized and vibrant, set against contrasting solid or textured backgrounds to highlight the avian anatomy. Condition-wise, the stamps appear to be 'Mint Never Hinged' (MNH) or 'Mint Lightly Hinged' (MLH), as they are housed in protective mounts without visible cancelation marks. The perforations appear intact along all edges. The ink remains saturated with no signs of fading or foxing. These stamps represent 'thematic philately,' a popular collecting niche focuses on fauna. The craftsmanship reflects the high standard of Eastern Bloc state printing houses of the era, known for their detailed nature-centric commemorative issues.