1) Contraception for males 2) Cygnus genus 3) Genus of swans 4) Genus of trumpeter swans 5) Genus of whistling swans 6) Mute swan 7) Swan genus 8) Swan, zoologically 9) Swans 10) Whistling swan 
An olor is a piece of cowhide or plastic tied onto a male goat like a skirt. It is used by Kenyan goatherders to prevent bucks from impregnating the female goats during times of drought. ...