What is the relationship between a red-billed ox-pecker and impala?

The red-billed ox-pecker and impala share a mutualistic relationship. The ox-pecker feeds on ticks and other parasites found on the impala's skin, helping to keep the host animal clean. In return, the impala benefits from reduced parasite load, while the ox-pecker gains a food source. This interaction highlights the interconnectedness of species within their ecosystem.