Birds as pests

Nature

In most countries, most species of birds are considered to be a valuable part of the fauna but there are some species of bird that have feeding and roosting habits which conflict seriously with agricultural and urban life.

Background

The significance of birds as pests emerged in the 19th century with the expansion of commercial agriculture, as large flocks caused substantial crop losses worldwide. Early scientific studies in Europe and North America documented these impacts, prompting international concern. Over time, the problem gained global recognition, particularly as intensified farming and urbanization altered bird populations and behaviors, leading to new challenges in managing their effects on food security and infrastructure.

Incidence

Those that most often draw complaints from farmers in the USA and western Europe because of serious depredations on crops include a number of species of blackbirds and finches, crows, starlings, English sparrows, robins and several species of ducks and geese. The damage caused is widespread, and of no small economic significance. It includes crop damage to corn, sorghum, rice and fruits. In urban areas, the starling, English sparrow, and rock pigeon are the species that commit most of the objectionable roosting on buildings and in shade trees.

Claim

Birds as pests pose a significant and often underestimated threat to agriculture, property, and public health. Their relentless destruction of crops, contamination of food supplies, and damage to infrastructure result in massive economic losses every year. Ignoring this issue jeopardizes food security and public safety. Immediate, effective action is essential to control bird populations and protect our resources. This is not a minor nuisance—it is a critical problem demanding urgent attention.

Counter-claim

Birds help prevent insect plagues, suppress explosions of rodents, scatter seeds and generally protect crops. Without them economic problems can multiply. A diverse and healthy bird population makes a good index for the overall wellbeing of the ecosystem.