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Threskiornis aethiopicus

Sacred Ibis

Western Europe (France, Italy, Spain), Taiwan

About the Sacred Ibis

Native to sub-Saharan Africa and Iraq, the sacred ibis has established large invasive populations across Western Europe, particularly France, Italy and Spain, following escapes from zoos and wildlife parks. Populations in Taiwan have also become established. A colonial nesting waterbird that forms dense breeding colonies.

Why it's a pest

Displaces native waterbirds including herons, egrets and spoonbills through aggressive nest predation, destroying eggs and chicks of competing species. Presents a significant aviation bird-strike hazard at coastal and inland airports due to large body mass and flock behaviour. Contaminates water bodies and wetlands with heavy faecal deposits.

Global Distribution

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Native rangeInvasive pestNative + pest

Native range

Sub-Saharan AfricaIraq

Established as invasive pest in

FranceItalySpainPortugalTaiwan

Breeding & lifecycle

Wild lifespan

10-15 years

Breeding maturity

36-48 months

Offspring / year

~3 fledglings

Breeding season

Spring to Summer

Egg incubation

28-29 days

A group is called

A congregation of ibises

Has religious undertones, linking back to Ancient Egypt where the bird was revered and worshipped as a symbol of the god Thoth.

A stand of ibises

Visual — describes their statuesque, upright posture while wading motionless in shallow water waiting for prey.

A colony of ibises

Biological — refers to their large shared nesting and foraging grounds in wetlands or landfills.

How the APC-N1 and APC-N4 manages Sacred Ibis

At approximately 750 mm, the sacred ibis fits a T4 — Extra Large tunnel (160 × 900 × 1050 mm). The tunnel is the physical entry point — sized precisely to admit the target species while excluding larger non-target birds. Species-specific attractant bait draws the sacred ibis into the detection zone inside the tunnel, where AI computer vision confirms species identity at 99.7% accuracy. Once confirmed, CO₂ is introduced gradually into the chamber; the bird becomes drowsy and loses consciousness without pain or distress. Euthanasia follows only after explicit authorisation from a licensed operator, and the specimen is stored in the integrated freezing chamber with a full compliance audit trail.

The T4 — Extra Large tunnel is available on the APC-N1 and APC-N4both units carry this tunnel size as a standard configuration.

Learn about the APC-N4

Sacred IbisThreskiornis aethiopicus

Physical dimensions

Avg weight1350 g
Torso width120 mm
Standing height750 mm

Recommended tunnel

Tunnel size is set by the species' standing height — sized to admit the target bird while excluding larger non-target species.

T1
T2
T3
T4
T4 — Extra Large151.2 L

Dimensions (W × H × L)

160 × 900 × 1050 mm

Species height range

over 500 mm standing height

Sacred Ibis standing height

750 mm

Available on

Affected regions

Western Europe (FranceItalySpain)Taiwan
Wikipedia: Threskiornis aethiopicus

Fleet size calculator

Estimate how many APC units you need to control a sacred ibis population — accounting for growth rate, knockdown timeframe, and operational hours.

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