Perhaps your alpacas should be fitted with Fog Lights, so you can find them in the fog. But Fog Horns might be a bit over the top and might spook them a little, so I think you had best stick to fog lights ;o))Hope that helps......Rob
Excellent idea! May have some Streetglow LEDs in the shed (although I believe the Spyder LED round lights have a better performance record). Will dash out to shed and check.