Saturday 2 August 2014

Greater honeyguide

26961_260_190READ MORE-The Greater Honeyguide (Indicator indicator) is fairly common and widespread, occurring widely in the Sahel and sub-Saharan Africa, except in desert, forest, and grassland; it is found in all but the desert parts of western South Africa. The distribution extends from Senegal and southern Mali south almost to the coast, east to Eritrea and south (around the main forested belt) through east-central Africa (including eastern and southern DRC and much of East Africa), and from Angola, northeastern Namibia, and northern and eastern Botswana to Mozambique and south to the former Cape Province (South Africa).
Greater Honeyguides are found in open woods, woodland edges, bushland, streamside woods, bushes in dry areas, plantations, gardens with trees, thickets, and trees lining suburban streets; they are often seen in the vicinity of bees' nests. They may be found up to 2000 m (occasionally to 3000 m in East Africa).
These birds have an unusual diet, feeding extensively on beeswax (which they digest readily), as well as on honeybee larvae and eggs and a range of other insects (including termites, winged ants, flies, and others). The nestlings, which are raised in the nests of other species (see below), feed on food provided by their host, including fruits. Immatures generally dominate around bees' nests. In some areas, Greater Honeyguides (often immature birds) lead humans to bees' nests. After the human honey gatherers have opened and left the nest, the bird feeds on pieces of honeycomb left behind. From these, it extracts mainly the larvae and the wax to supplement its diet of insects. (For more details on the symbiotic relationship between traditional human honey gatherers and honeyguides, see Isack and Reyer 1989.)
Greater Honeyguides are brood parasites, laying their eggs in the nests of a diverse set of avian host species (mainly from the Coraciiformes and Upupiformes) at any given location. They typically deposit just a single egg per nest (sometimes more), laying up to 20 total. Females typically puncture the host's eggs when laying their own, but in many nests at least one host egg survives. The young honeyguides finish the job. Spottiswoode and Koorevaar (2012) found that hosts always hatched after honeyguide chicks (presumably in part due to an additional period of internal incubation in female honeyguides; Birkhead et al. 2011) and were killed within hours by honeyguide nestlings, which utilize a specialized sharp hook on their bills (this hook is lost after 2 weeks or more). Despite being blind and in total darkness, honeyguide chicks attack host young with sustained biting,

1 comment:

  1. FOOTNOTE ON PROGRAMME TALK TO ANIMALS IT SHOWED HOW THE LOLCAL TRIBESMAN APE THE BIRDS CALL TO FIND HONEY.IN RETURN THE BIRD WHO IS SMALL AND WOULD GET STUNG TO DEATH GETS A REWAWRD FROM THE TRIBESMAN OF SOME HONEY-HUMAN TO ANIMAL INTERACTION.

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