Indicator (genus)


Indicator is a genus of birds in the honeyguide family Indicatoridae. The name refers to the behaviour of some species, notably the greater honeyguide, which guide humans to bee colonies so that they can share in the spoils of wax and insects when the nest is broken into.
Indicator honeyguides are brood parasites which lay eggs in a nest of another species, in a series of about five during five to seven days. Most favour hole-nesting species, often the related barbets and woodpeckers. Nestlings have been known to physically eject their host's chicks from the nest, and they have hooks on their beaks with which they puncture the hosts' eggs or kill the nestlings, by repeated lacerations if not a fatal stab.

Taxonomy

The genus Indicator was introduced in 1815 by the English naturalist James Francis Stephens with the type species, by tautonymy, as Indicator sparrmanii Stephens, a junior synonym of Cuculus indicator Sparrman, the greater honeyguide. The genus name is from Latin indicator, indicatoris meaning "guide" or "one that points out".

Species

The genus contains ten species:
ImageScientific nameCommon nameDistribution
Indicator maculatusSpotted honeyguideAngola, Benin, Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Liberia, Mali, Nigeria, Senegal, Sierra Leone, South Sudan, Togo, and Uganda.
Indicator variegatusScaly-throated honeyguideAngola, Burundi, DRC, Eswatini, Ethiopia, Kenya, Malawi, Mozambique, Rwanda, Somalia, South Africa, South Sudan, Tanzania, Uganda, Zambia, and Zimbabwe.
Indicator indicatorGreater honeyguidesub-Saharan Africa
Indicator archipelagicusMalaysian honeyguidewestern Thailand, Peninsular Malaysia, Borneo and the island of Sumatra.
Indicator minorLesser honeyguideWidely distributed across sub-Saharan Africa
Indicator willcocksiWillcocks's honeyguideCameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Gabon, Ghana, Guinea-Bissau, Liberia, Nigeria, Rwanda, Sierra Leone, and Uganda.
Indicator exilisLeast honeyguideAngola, Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Gabon, Ghana, Guinea, Guinea-Bissau, Kenya, Liberia, Nigeria, Rwanda, Sierra Leone, South Sudan, Tanzania, Togo, Uganda, and Zambia.
Indicator pumilioDwarf honeyguideDemocratic Republic of the Congo, Rwanda, Uganda, and possibly Burundi.
Indicator meliphilusPallid honeyguideAngola, Democratic Republic of the Congo, Kenya, Malawi, Mozambique, Tanzania, Uganda, Zambia, and Zimbabwe.
Indicator xanthonotusYellow-rumped honeyguideNepal, Sikkim, Arunachal Pradesh and Bhutan