Canal de Castilla Rey (Palencia), considered the beginning of the Northern Branch, Valladolid and Medina de Rioseco, lying at the end of the Southern Branch and Campos Branch respectively. The countryside crossed by the canal is of interest for its birdlife. In the Tierra de Campos there are two large Special Protection Areas ("La Nava-Campos Norte" and "La Nava-Campos Sur") which are notable for the birds such as great bustards ("Otis tarda") which live in the dryland farming areas (sometimes described as "steppes") which are typical of the region. The canal, on the other hand, provides habitats for wetland birds such as the
Three Little Birds did shows with Marley claim it is a reference to them. I Threes member Marcia Griffiths remarked, "After the song was written, Bob would always refer to us as the Three Little Birds. After a show, there would be an encore, sometimes people even wanted us to go back onstage four times. Bob would still want to go back and he would say, 'What is my Three Little Birds saying?'" Former baseball player Shane Victorino, a fan of Bob Marley, used the song's chorus as his at-bat music. During his tenure with the Boston Red Sox, the crowd at Fenway