Scientific name: Corvus cornix Family: Corvidae Order: Passeriformes Risk level: Moderate Category: Flying pests
? What is a hooded crow
The hooded crow (Corvus cornix) is among the most intelligent birds, showing problem-solving and social-learning abilities comparable to those of some mammals. It has distinctive gray-and-black plumage and measures 45–47 cm. It is a pest at landfills, airports and coastal areas, where it poses a risk to aviation.
Hooded crow life cycle
Birds usually reach maturity in their first year. Pigeons lay two eggs per clutch and produce 4–6 clutches annually. Sparrows produce 2–3 broods per year, with 4–6 young each.
Where hooded crows occur
Feral and domestic birds occur in cities, airports, food industries and urban areas worldwide.
Damage and risks associated with hooded crows
They pose a biological hazard to aviation, contaminate and scatter waste, and affect other species by raiding nests and stealing eggs.
Signs of hooded crows
Signs include droppings on roofs and equipment, nests in ventilation openings and window frames, shed feathers, noise and contamination marks on products.
Where hooded crows are found
They occur at landfills, ports, beaches, open urban areas and around airports.
Hooded crow control methods
Start with physical deterrents: spike wires, netting, low-voltage electric systems and repellent gels. A biological deterrent is trained birds of prey.
Hooded crow control products
Use live traps and relocation. Sterilized bird eggs may be used in accordance with regulations. Chemical repellents (methyl anthranilate) can be used in open areas.
Food-facility control requirements
FSSC 22000/BRCGS: birds in food areas are an immediate major non-conformance. A documented bird-prevention program with regular monitoring is required.
A fact about hooded crows
Crows remember human faces. Research has found that flocks teach their young to beware of specific people and places where they have previously been harmed, passing this “cultural learning” to later generations. This makes them one of the rare non-human animals with inherited social culture.
Frequently asked questions
Q: What is the best way to drive hooded crows away from a building?
A: Combine physical solutions (wires and netting) with auditory and visual deterrents. Complete deterrence requires assessment by a bird specialist.
Q: Are bird droppings a health hazard?
A: Yes. They contain numerous pathogens, and their acidity damages structures. Cleanup requires suitable protective equipment and an occupational-health protocol.
