Waxwing

The Bohemian Waxwing (Bombycilla garrulus), belonging to the order Passeriformes and the family Bombycillidae, is recognized as a significant nuisance in agricultural settings. While they are birds, their foraging habits in large flocks during winter and early spring categorize them as major agricultural pests for commercial fruit and berry production.

These birds primarily target berry-bearing crops, including rowan, hawthorn, viburnum, sea buckthorn, and various orchard fruits. In years when natural forest food sources are scarce, waxwings migrate to domestic gardens and plantations, where they can rapidly consume an entire year's crop, leaving growers with substantial financial losses.

The biology of the waxwing is characterized by highly social, nomadic behavior. They travel in dense flocks and exhibit extreme efficiency in locating and consuming fruit. Their high metabolic rate requires them to feed almost constantly throughout the day, allowing them to strip a tree of all its fruit in a matter of hours.

The damage caused by waxwings goes beyond the consumption of fruit. By pecking at terminal buds and breaking small branches while perching in large numbers, they inflict mechanical damage on the trees. This hinders the plant’s development, affects the structural integrity of the canopy, and compromises the health of the tree for the upcoming growth cycle.

Effective management strategies focus on deterrence and physical exclusion to mitigate avian damage:

• Installing fine-mesh exclusion netting over fruit-bearing trees and shrubs.
• Utilizing visual deterrents like reflective holographic tape or predator decoys.
• Deploying sound-based systems that emit distress calls to scare flocks away.
• Managing the harvest schedule to ensure that ripe fruits are picked before the peak of waxwing migration.