Black-headed gonolek east of the Eastern Rift Valley

Supplementary material

**First record of the Black-headed gonolek Laniarius erythrogaster east of the Eastern Rift Valley**

Journal of East African Natural History 114(5): 50-54 (2025).

By Thomas M. Butynski, Sylvain Bel, James Christian, Johnnie Cross, Jamie P.C. Gaymer, Alex Bell, and Yvonne A. de Jong

Photographs and video below by Johnnie Cross, Ol Jogi Wildlife Conservancy, Laikipia, central Kenya.

Adult female black-headed gonolek Laniarius erythrogaster, Ol Jogi Wildlife Conservancy, Laikipia, central Kenya.

Adult female black-headed gonolek Laniarius erythrogaster, Ol Jogi Wildlife Conservancy, Laikipia, central Kenya.

Adult female black-headed gonolek Laniarius erythrogaster and adult (probably male) slate-coloured boubou Laniarius funebris duetting on Ol Jogi Wildlife Conservancy, Laikipia, central Kenya. The second part of this duet is the ‘TURRRR’ call of L. erythrogaster. The L. funebris is to the left of the L. erythrogaster and is largely hidden by leaves.

Adult female black-headed gonolek Laniarius erythrogaster, Ol Jogi Wildlife Conservancy, Laikipia, central Kenya.

Contacts

Dr. Yvonne de Jong & Dr. Tom Butynski

Postal address:
P.O. Box 149
Nanyuki – 10400, Kenya

Whatsapp: +31 6 49638585
Email: yvonne@wildsolutions.nl

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thank you for this interesting article and all the efforts you took for this research.
Yes, sadly the uncontrolled human number increament is devastating for nature and its inhabitants.
Kind regards
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Having lived in Tanzania for 60 years I have witnessed at first hand the catastrophic population explosion which has already resulted in much loss of habitat. I fear your predictions are fully justified. But well done for producing a good paper.
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