Great tinamou

The great tinamou (Tinamus major) is a ground-dwelling bird belonging to the Tinamiformes order. Native to the rainforests of Central and South America, this species has increasingly become a concern for local agriculture. As human activity encroaches on their natural habitats, these birds often opportunistically feed on agricultural fields, classifying them as pests for specific crop varieties.

Crops primarily affected by the great tinamou include maize, beans, and various legumes. The most critical period of damage occurs shortly after sowing, when the birds dig up and consume the seeds from the shallow layers of the soil. Later in the season, they may also peck at young seedlings and mature fruits, leading to significant yield reduction if the local population density is high.

In terms of biology, the great tinamou is a solitary and elusive creature. They build simple nests on the forest floor, relying on camouflage for protection. Because they are not migratory and have a strong preference for their home range, they can cause chronic damage to fields located adjacent to forest patches or dense, overgrown hedges, requiring persistent monitoring.

The damage caused is characterized by missing seedlings and empty seed slots in the rows. Unlike larger vertebrate pests, the tinamou works methodically, consuming seeds and shoots in clusters. This selective feeding habit reduces crop uniformity, which makes later agronomic interventions, such as chemical spraying or mechanical harvesting, less efficient and more costly.

Protecting fields from the great tinamou involves a combination of mechanical and biological deterrents. Visual aids, such as kites shaped like birds of prey, and acoustic devices that simulate alarm calls are often used with success. Additionally, treating seeds with specific repellents before planting can help discourage the birds from targeting newly sown plots during the sensitive germination stage.