Woodpecker
Relationship with humans

In general, humans consider woodpeckers in a favourable light; they are viewed as interesting birds and fascinating to watch as they drum or forage, but their activities are not universally appreciated. Many woodpecker species are known to excavate holes in buildings, fencing, and utility poles, creating health and/or safety issues for affected structures. Such activity is very difficult to discourage and can be costly to repair.

Woodpeckers also drum on various reverberatory structures on buildings such as gutters, downspouts, chimneys, vents, and aluminium sheeting. Drumming is a less-forceful type of pecking that serves to establish territory and attract mates. Houses with shingles or wooden boarding are also attractive as possible nesting or roosting sites, especially when close to large trees or woodland. Several exploratory holes may be made, especially at the junctions of vertical boards or at the corners of tongue-and-groove boarding. The birds may also drill holes in houses as they forage for insect larvae and pupae hidden behind the woodwork.

Woodpeckers sometimes cause problems when they raid fruit crops, but their foraging activities are mostly beneficial as they control forest insect pests such as the woodboring beetles that create galleries behind the bark and can kill trees. They also eat ants, which may be tending sap-sucking pests such as mealybugs, as is the case with the rufous woodpecker in coffee plantations in India. Woodpeckers can serve as indicator species, demonstrating the quality of the habitat. Their hole-making abilities make their presence in an area an important part of the ecosystem, because these cavities are used for breeding and roosting by many bird species that are unable to excavate their own holes, as well as being used by various mammals and invertebrates.

The spongy bones of the woodpecker's skull and the flexibility of its beak, both of which provide protection for the brain when drumming, have provided inspiration to engineers; a black box needs to survive intact when a plane falls from the sky, and modelling the black box with regard to a woodpecker's anatomy has increased the resistance of this device to damage 60-fold. The design of protective helmets is another field being influenced by the study of woodpeckers.

One of the accounts of the founding of Rome, preserved in the work known as Origo Gentis Romanae (unknown), refers to a legend of a woodpecker bringing food to the boys Romulus and Remus during the time they were abandoned in the wild, thus enabling them to survive and play their part in history.
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