Some critics of hare coursing suggest that coursers could test their dogs through lure coursing. Like most sighthounds, Silkens are noted coursers. Rare birds and endangered species such as Indian coursers and vultures are often sighted. The coursers have long legs, short wings and long, pointed bills that curve downwards. Most knights and mounted men-at-arms rode other war horses, such as coursers and rounceys. However, most knights and mounted men-at-arms rode smaller horses known as coursers and rounceys. It contains two distinct groups, the pratincoles and the coursers. In his master's will of 1426 he was left one of the Duke's coursers. Double-banded coursers breed in monogamous pairs. The coursers are fairly nomadic, but do not undertake long distance migrations. Coursers were also used occasionally for hunting. Coursers were generally preferred for hard battle as they were light, fast and strong. Like the pratincoles, the coursers are found in warmer parts of the Old World. The coursers are typically found in open and arid environments such as deserts and scrub. These coursers are found in Canary Islands, Cape Verde, North Africa and Southwest Asia.