What is "penedesenca"

The Penedesenca is a breed of chicken originating in the Spanish region of Catalonia, in the area around Vilafranca del Penedès, the main town of the historical Penedès region. It was developed in the first half of the 20th century from native barnyard chickens, and today is noted for its dark brown eggs, said to be among the darkest of any breed of chicken.