Shepherds lead their sheep through the centre of Madrid, Spain, Sunday, October 25, 2015. Shepherds have guided a flock of 2,000 sheep through Madrid streets in defense of ancient grazing, droving and migration rights increasingly threatened by urban sprawl and modern agricultural practices. Tourists and city-dwellers were surprised to see the capital's traffic cut to permit the ovine parade to bleat bells clanking its way past the city's most emblematic locations. (Photo by Daniel Ochoa de Olza/AP Photo)





People look as shepherds lead their sheep through the centre of Madrid, Spain, Sunday, October 25, 2015. (Photo by Daniel Ochoa de Olza/AP Photo)





Shepherds lead their sheep through the centre of Madrid, Spain, Sunday, October 25, 2015. (Photo by Daniel Ochoa de Olza/AP Photo)





A shepherd dog stands among sheep led by shepherds through Madrid city centre, Spain, Sunday, October 25, 2015. (Photo by Daniel Ochoa de Olza/AP Photo)





Shepherds lead their sheep through the centre of in Madrid, Spain, Sunday, October 25, 2015. (Photo by Daniel Ochoa de Olza/AP Photo)





Around 2000 merino sheep walk past Madrid's two hall during the annual sheep parade through Madrid, Spain, October 25, 2015. Shepherds parade the sheep through the city every year in order to exercise their right to use traditional routes to migrate their livestock from northern Spain to winter grazing pasture land in southern Spain. (Photo by Sergio Perez/Reuters)





A shepherd leads a flock of around 2000 merino sheep during the annual sheep parade through Madrid, Spain, October 25, 2015. (Photo by Sergio Perez/Reuters)





A sheep looks amidst of a flock of around 2000 merino sheep during the annual sheep parade through Madrid, Spain, October 25, 2015. (Photo by Sergio Perez/Reuters)





People stand beside a flock of around 2000 merino sheep during the annual sheep parade through Madrid, Spain, October 25, 2015. (Photo by Sergio Perez/Reuters)





A man takes pictures of a flock of around 2000 merino sheep during the annual sheep parade through Madrid, Spain, October 25, 2015. (Photo by Sergio Perez/Reuters)





People watch a flock of sheep during the annual sheep parade through Madrid, Spain, October 25, 2015. (Photo by Sergio Perez/Reuters)





A girl holds a soft toy depicting a sheep as a flock of around 2000 merino sheep walk past her during the annual sheep parade through Madrid, Spain, October 25, 2015. (Photo by Sergio Perez/Reuters)





A flock of around 2000 merino sheep walk past in front of Madrid's Alcala Gate during the annual sheep parade through Madrid, Spain, October 25, 2015. (Photo by Sergio Perez/Reuters)