# Shoebill — Facts, Threats & Conservation

*Balaeniceps rex*

> The shoebill (Balaeniceps rex) is a Vulnerable African swamp bird famous for its massive shoe-shaped bill and motionless hunting posture; roughly 5,000–8,000 individuals remain in Central and East African wetlands.

**IUCN status:** Vulnerable (IUCN, 2018)  ·  **WARN range:** Uganda, South Sudan, Zambia, Rwanda, Democratic Republic of the Congo, Central African Republic, Tanzania

## Quick facts
| Fact | Value |
| --- | --- |
| Height | Up to 1.4 m (4 ft 7 in) |
| Wingspan | Up to 2.5 m |
| Weight | Roughly 4–7 kg |
| Bill length | Up to 19 cm |
| Diet | Lungfish, catfish, frogs, snakes, small crocodiles |
| Habitat | Papyrus swamps and floating wetlands |
| Clutch size | Usually 2 eggs — often one chick survives |
| IUCN status | Vulnerable (2018 assessment) |
| Population | Estimated 5,000–8,000 individuals |
| CITES | Appendix II — international trade regulated |

## Scientific classification
- **Kingdom:** Animalia
- **Phylum:** Chordata
- **Class:** Aves
- **Order:** Pelecaniformes
- **Family:** Balaenicipitidae
- **Genus:** Balaeniceps
- **Species:** Balaeniceps rex (Gould, 1850)

## Conservation status
- **Status:** Vulnerable
- **Population:** 5,000–8,000 individuals (IUCN 2018)
- **Trend:** Decreasing
- **Assessed:** 2018
- **CITES:** Appendix II
- Wetland drainage, nest disturbance, illegal live trade and fishing-net mortality are the leading documented threats.

## Key facts: Shoebill
- The shoebill's bill is one of the largest among living birds — adapted to grasp lungfish and other swamp prey.
- Shoebills hunt by standing motionless for long periods, then striking with explosive speed.
- Vulnerable on the IUCN Red List — wetland drainage and nest disturbance are primary threats.
- Central and East African papyrus swamps — Uganda, South Sudan, Zambia, Rwanda — hold most populations.
- Illegal capture for zoos and drowning in fishing nets add mortality beyond habitat loss.

## What is a shoebill?
The shoebill is the sole living species in genus Balaeniceps and family Balaenicipitidae — phylogenetically placed among pelicans and hamerkops despite its stork-like appearance. Adults are mostly grey with a small crest, pale eyes and long black legs. Juveniles are browner. The bill is broad, hooked at the tip and deeply keeled — shaped to grip slippery lungfish (Protopterus) and other swamp vertebrates. Shoebills are largely silent except for bill-clapping displays and rare low murmurs at the nest. They can live 35 years or more in captivity; wild lifespan is less documented but likely decades with sufficient wetland food.

## Where does the shoebill live?
Shoebills inhabit freshwater swamps with papyrus, reeds and floating vegetation — especially where lungfish and catfish abound. Range spans South Sudan, Uganda, western Tanzania, Rwanda, eastern DRC, northern Zambia and patchily Central African Republic. They are absent from coastal mangroves and arid zones. Home ranges are large and tied to ephemeral flood cycles — birds move as water levels rise and fall. Mabamba Bay on Lake Victoria (Uganda) and Bangweulu Wetlands (Zambia) support tourism that funds local guards — when nest disturbance is controlled, breeding success improves.

## How does a shoebill hunt?
Shoebills are ambush predators — they stand frozen for minutes or hours, then lunge forward with wings spread for balance, snapping the bill shut on prey. Lungfish are a staple; frogs, snakes, monitor lizards, juvenile crocodiles and small waterbirds are also taken. Prey is decapitated or shaken before swallowing. Shoebills are solitary outside breeding — pairs defend nesting territories on floating platforms or papyrus mats. Two eggs are typical; siblicide often leaves one fledgling — a slow reproductive strategy that magnifies population sensitivity to disturbance.

## Why is the shoebill Vulnerable?
The IUCN lists the shoebill as Vulnerable — population estimated at 5,000–8,000 and decreasing. Wetland conversion for agriculture, rice schemes and oil exploration drains core habitat. Nest trampling by cattle and disturbance from poorly managed tourism reduce breeding output. Illegal live capture for Middle Eastern and Asian zoos removes wild birds — CITES Appendix II regulates international trade but enforcement is weak. Bycatch and entanglement in fishing nets drown birds in shared waterways. Climate-driven shifts in flood timing may desynchronise shoebill breeding from lungfish availability — research ongoing.

## What WARN does
WARN does not currently operate field projects in shoebill range countries — Uganda, South Sudan and Zambia lie outside WARN's active partner network in South Asia, Southeast Asia and South America. This guide is offered as free educational content linking African wetland conservation to the broader habitat-protection case WARN makes globally. Healthy wetlands in any continent underpin species from shoebills to freshwater turtles — habitat appeals fund partner-led protection where WARN does operate.

Wetland habitats that sustain shoebills face the same drainage and fragmentation pressures as freshwater ecosystems worldwide. Supporting WARN habitat protection helps fund partner-led work keeping critical landscapes intact for wildlife and communities.

## Frequently asked questions: Shoebill
### Why is it called a shoebill?
The bill resembles a wooden shoe or clog — broad, flattened and hooked at the tip — unlike the narrow beaks of herons or storks.

### Is the shoebill a stork or a pelican?
Neither traditionally — molecular studies place shoebills closest to pelicans and hamerkops in order Pelecaniformes, though morphology is unique.

### How many shoebills are left?
IUCN estimates roughly 5,000–8,000 individuals globally — Vulnerable with a decreasing trend.

### Where can you see shoebills in the wild?
Uganda (Mabamba Swamp), Zambia (Bangweulu), South Sudan and Rwanda host guided tourism — choose operators that keep distance from nests.

### Are shoebills dangerous?
They can strike with the bill if cornered — powerful enough to injure a person. Wild birds should never be approached closely.

### What threatens shoebills most?
Wetland habitat loss, nest disturbance, illegal capture for zoos and drowning in fishing nets — climate shifts in flooding patterns add longer-term risk.

## Sources
- [IUCN Red List — Balaeniceps rex](https://www.iucnredlist.org/species/22627783/132216079)
- [BirdLife DataZone — Shoebill species factsheet](https://datazone.birdlife.org/species/factsheet/shoebill-balaeniceps-rex)
- [CITES Appendices — Balaenicipitidae](https://cites.org/eng/app/appendices.php)

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Full guide: https://worldanimalrescuenetwork.org/wildlife-guides/shoebill