Natterjack/ˈnætərdʒæk/ Definition 1 of 1Pro Tip 1/3Species Specific Natterjack refers to a particular toad species, not toads in general. The natterjack is a protected species in some countries. Pro Tip 2/3Distinctive Feature Remember the natterjack's unique yellow stripe when identifying it. The bright stripe is a sure sign of a natterjack. Pro Tip 3/3Habitat Context Natterjacks are often found in sandy areas, like dunes and heaths. Look for natterjacks around coastal dunes in summer.