This often refers to Ghent , a city in Belgium famous for its history in pigeon racing and high-quality "Belgian bloodlines."

Look for the official ring number associated with this string. The "Cardas" label suggests the bird's data is stored in a derby database where you can find its parents (Sire and Dam) and its flight performance (velocity, distance, and rank).

Check the 2021 Derby results for the specific club or federation mentioned. Often, these birds are auctioned based on their performance in specific "final races."