Family Storks (Ciconiidae)


Storm's Stork (Ciconia stormi)


French: Cigogne de Storm German: Höckerstorch Spanish: Cigüeña de Storm

Melanopelargus episcopus stormi

A. W. H. Blasius

, 1896,

Pontianak, western Borneo


Previously considered a race of C. episcopus before great distinctiveness recognized, but now universally accepted as a separate species. Monotypic.


Malay Peninsula (tiny populations in both S Thailand and Peninsular Malaysia)#R, Sumatra (including Mentawai and North Pagai Is, off W coast)#R and Borneo (where widespread but scarce)#R.

Descriptive notes

75–91 cm. Bare facial skin far more extensive and brighter than in C. episcopus, which has white lower foreneck, dark bill and bronze coloration on inner wing-... read more


Chicks give loud, harsh and repeated “krack” calls in captivity and a repeated frog-like “skhrekeh... read more


Undisturbed freshwater habitats, mangroves (at least in E Sumatra), tall evergreen, semi-evergreen... read more

Food and feeding

Apparently mainly fish, though very little known; probably also reptiles, amphibians, insects (e.g dragonfly larvae, grasshoppers) and... read more


Season suspected to begin in Aug–Sept in Borneo (Kalimantan), with just-fledged juvenile found in Sarawak in Nov. Very poorly known,... read more


Unknown, but individuals suspected to wander great distances, having been observed up to 20 km from... read more

Status and conservation

ENDANGERED. Probably rarest of all storks after Leptotilus dubius. Overall population estimated by BirdLife International at 260–330 mature individuals... read more

Recommended citation

Elliott, A., Kirwan, G.M. & Garcia, E.F.J. (2019). Storm's Stork (Ciconia stormi). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 16 February 2019).