Common pochard

The common pochard (Aythya ferina) belongs to the Anseriformes order and the Anatidae family. While primarily a wild waterfowl species, it can become an agricultural nuisance in areas where wetlands overlap with large-scale rice cultivation projects.

The primary agricultural damage caused by the common pochard occurs in rice paddies during the early stages of crop development. The birds feed on submerged fields, specifically targeting germinating seeds and young seedlings, which directly impacts the plant population density.

Their biological cycle involves nesting in wetland vegetation near water bodies. Once the ducklings hatch, the families forage for food in shallow, flooded areas, such as rice paddies, which provide an abundant food source, leading to significant grazing pressure on the young rice plants.

The economic harm is characterized by patchy stand establishment and the destruction of seedlings. In cases of high population density, these birds can cause substantial yield losses, forcing farmers to take immediate action to mitigate the reduction in the total harvestable area.

Effective protection measures focus on exclusion and deterrence.

• Installation of acoustic deterrents to mimic predator presence.
• Deployment of reflective tapes and visual scarecrows.
• Precision planting techniques that accelerate early growth.
• Water management strategies to discourage bird landing during the most vulnerable crop stages.