Indicator species are key to the survival and health of an ecosystem, and by focusing on their well-being, conservationists can often protect the well-being of many other species in the area. To see this model up close, Ivan travels to Texas, where a team works to protect quail, a vital indicator species for the area. But safe-guarding this bird is a complex task, and the team faces many uphill battles to secure the quail's future.

Indicator species are key to the survival and health of an ecosystem, and by focusing on their well-being, conservationists can often protect the well-being of many other species in the area. To see this model up close, Ivan travels to Texas, where a team works to protect quail, a vital indicator species for the area. But safe-guarding this bird is a complex task, and the team faces many uphill battles to secure the quail's future.