African Openbill

Identification

The African openbill is a medium-sized stork measuring 80–94 cm in length and weighing 1–1.3 kg. Adults are striking in appearance, with overall black plumage offset by iridescent green feathers on the back, coverts, and abdomen. Juveniles are duller, displaying brownish tones with pale-tipped underpart feathers. The most distinctive feature is the bill: 135–196 mm long and brownish in colour, with a characteristic gap between the upper and lower mandible that gives the species its name. This gap is absent in juveniles and develops with age. Males are slightly larger than females and possess longer, heavier bills. The legs and feet are black, and the eyes are grey with grey lores.

Range & Habitat

The African openbill is widely distributed across Sub-Saharan Africa and the western regions of Madagascar, where it is considered common to locally abundant, though its distribution is patchy. Two subspecies are recognized: A. l. lamelligerus on the continental mainland and A. l. madagascariensis on Madagascar, the latter distinguished by more pronounced longitudinal ridges on the bills of adults. This stork is closely related to the Asian openbill, sharing the same peculiar bill structure that characterizes the genus.

Behaviour & Diet

African openbills primarily feed on aquatic snails, and their remarkable bill is perfectly specialized for this diet. The gap between the mandibles allows the bird to grasp snail shells effectively, while the convergent tips prevent prey from slipping forward. The curve of the lower mandible enables the stork to force its way under the operculum and extract molluscs from their shells. The species is highly vocal, accompanying social displays with bill clatters, croaks, and loud honks typical of storks. Despite their smaller stature compared to other storks, African openbills are remarkably agile fliers, performing steep dives and acrobatic manoeuvres during descent. They use sustained flapping flight at 200–210 flaps per minute during migration and exploit thermals to soar between distant feeding areas, conserving energy on long journeys.

Best Time & Places to See It

The African openbill's patchy but widespread distribution across Sub-Saharan Africa and Madagascar offers numerous opportunities for observation. Look for them in wetland habitats where aquatic snails are abundant. While no current population estimates exist, the species remains stable and abundant throughout much of its range, making sightings reasonably reliable in suitable locations.

Photography Tips

Photograph African openbills in flight to capture their agility and impressive wing span, or in profile to showcase the distinctive open bill structure. The iridescent green feathers on the back and abdomen are particularly striking in good light; shoot during golden hour to enhance these colours. Watch for social displays accompanied by bill clattering—these moments provide dynamic behavioural shots. The contrast between their dark plumage and grey eyes offers excellent compositional opportunities.