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
Great and Little Kimble it to one Albert. Great Kimble was assessed for taxation at 20 hides, while Little Kimble answered for only 10 hides. The information given in Domesday Book is summarised below. (Numbers of people refer only to the heads of families). Behind the church at Little Kimble to the east are mounds and banks in the grass which are all that remain of a motte and bailey castle, which would have been built at the order of the Normans soon after the conquest. These timber castles were built all over England and consisted of a high mound (the Motte), surmounted by