Birds Follow a Herd of Water Buffalo to Catch Insects

Multiple Choice

Birds follow a herd of water buffalo to catch insects that are disturbed as the large herbivores walk through the grass. When large predators are near, the birds fly into the air and make warning calls. What is the ecological relationship between the birds and the herbivores called?

A) Competition
B) Parasitism
C) Resource partitioning
D) Mutualism
E) Predation