What If Gone

Species → Greater Honeyguide

Greater Honeyguide

Indicator indicator

No global figure — densities are low everywhere but the trend is…
Extinction risk Least Concern
Obligate mutualismSavannaConservation
Greater Honeyguide (Indicator indicator)
Photo: Dominic Sherony, Wikimedia Commons (CC BY-SA 2.0)

What if it disappeared?

Impact Moderate
In Tanzania

Among the Hadza of Tanzania, collaboration with the greater honeyguide multiplies the rate of finding bees' nests by 6.6 — a contribution estimated at 8 to 10% of this hunter-gatherer community's total diet.

Documented
Detail

Wood, B.M., Pontzer, H., Raichlen, D.A. et Marlowe, F.W. (2014). Mutualism and manipulation in Hadza-honeyguide interactions. Evolution and Human Behavior, 35(6), 540–546.

The study draws on 146 field-tracked foraging trips (921 hours total) between 2001 and 2013 across twelve camps. Nests found with the bird's help are also significantly richer than those found without it — the honeyguide doesn't just increase how often nests are found, it also steers hunters toward better resources.

In Mozambique

What the Hadza community would lose if this mutualism disappeared comes down to a precise mechanism: by responding to the Yao honey-hunters' special 'brrr-hm!' call, the greater honeyguide doubles its chances of guiding them (33% to 66%) and more than triples its chances of leading them to an actual bees' nest (16% to 54%) compared with a control sound.

Documented
Detail

Spottiswoode, C.N., Begg, K.S. et Begg, C.M. (2016). Reciprocal signaling in honeyguide-human mutualism. Science, 353(6297), 387–389.

By field-testing the traditional Yao honey-hunters' call against control sounds of comparable volume in the Niassa National Reserve, the authors show that the bird distinguishes the specific signal from mere noise — the first demonstration of two-way communication, in which each species actively signals to the other its willingness to cooperate.

Across the African mosaic

The greater honeyguide learns the specific signals of its local human partners — it cooperates almost twice as readily with the traditional call of its own region as with a 'foreign' call that works just as well elsewhere — which makes the mutualism vulnerable to the local erosion of honey-hunting practices, independent of the bird population's own health.

Extrapolated
Detail

Spottiswoode, C.N. et Wood, B.M. (2023). Culturally determined interspecies communication between humans and honeyguides. Science, 382(6675), 1155–1158.

By comparing how honeyguides in Mozambique respond to the local Yao call versus a foreign Hadza call recorded in Tanzania, the authors show that the local learning effect is not explained by differences in how the sounds carry acoustically — the bird genuinely learns its human community's signal, generation after generation, a mutualism culturally shaped on both sides of the interaction.

What's missing to confirm it: No monitoring yet directly measures whether the decline of traditional honey-hunting practices in some regions translates into a measurable loss of local bird responsiveness, rather than remaining a plausible but untested hypothesis.

Documentation

Last verified: August 14, 2026