Domestic chicken

The genus Gallus (chickens) belongs to the order Galliformes and the family Phasianidae. While generally considered farm poultry, in an agronomical context, these animals often act as invasive pests, particularly in organic gardens and vegetable production sites, causing significant damage to emerging crops.

Chickens pose a major threat to sprouting seeds, delicate seedlings, and young vegetable plants. Their foraging habits often lead to the destruction of entire crop rows as they dig for seeds, grubs, and sprouts. Leafy greens, herbs, and legumes are particularly susceptible to their grazing behavior.

The biology of these birds is characterized by a natural scratching behavior, which is detrimental to the soil structure. By scratching the topsoil to find food, they expose root systems to drying air and sunlight. This often leads to the death of the plant, even if the bird does not consume the foliage itself.

Damage assessment shows that the pest pressure is highest during the germination stage. Once the plants are established, the risk decreases, but the initial loss of plant density significantly reduces overall yields. Furthermore, excessive presence can lead to localized soil nutrient imbalances due to the accumulation of manure.

To effectively protect agricultural plots from this pest, an integrated approach is necessary:

• Install physical barriers such as wire mesh or poultry netting.
• Use row covers or horticultural fleece to protect young seedlings.
• Employ motion-activated sprinklers to deter birds from entering the garden area.
• Implement visual deterrents like shiny reflectors or hawk-shaped kites to scare off flocks.