Flock of Sheep
These particular sheep belong to a research flock at the US Sheep Experiment Station near Dubois, Idaho, USA
Image taken from http://www.ars.usda.gov/is/graphics/photos/apr12/k4166-5.htm (Image Number K4166-5).
Photo by Keith Weller.
https://commons.wikimedia.org/wiki/File:Flock_of_sheep.jpg
https://www.ars.usda.gov/ARSUserFiles/oc/graphics/photos/300dpi/kesa/k4166-5.jpg