Will a kookaburra attack guinea pigs?

Yes, kookaburras are predators and will attack guinea pigs if given the opportunity. In the wild, kookaburras primarily feed on insects, small mammals, reptiles, and amphibians, and can therefore consider guinea pigs as prey if kept as pets in an outdoor enclosure. Therefore, it's important to keep guinea pigs safely enclosed in a predator-proof enclosure to avoid any potential attacks.