About Carl Julian (von) Graba
Carl Julian (von) Graba was a German lawyer and Royal Danish judicial councillor, and was also a keen ornithologist and one of the first modern researchers to visit and study the Faroe Islands, where he described the local puffin which was subsequently named Fratercula arctica grabae after him. Graba's findings were mentioned in 1872 by Charles Darwin in his book On the Origin of Species. Graba spent three months there in 1828, to investigate what he called the "birds of the North in their home environment", which he imagined.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.