Steve Downer / Gall wasp (Biorhiza pallida) emerging from a gall on an Oak (Quercus) tree, UK, June.

Richard Du Toit / Crested Guineafowl (Guttera pucherani) partially hidden by vegetation, Limpopo Province, South Africa, October

Staffan Widstrand / Crested guineafowl (Guttera pucherani) iMfolozi National Park, South Africa

Edwin Giesbers / Crested guineafowl (Guttera pucherani) portrait, captive

Edwin Giesbers / Crested guineafowl (Guttera pucherani) portrait, captive

Edwin Giesbers / Crested guineafowl (Guttera pucherani) close-up of back showing feathers, captive

Richard Du Toit / Crested guineafowl (Guttera pucherani), Zululand, South Africa, October

Richard Du Toit / Crested Guineafowl (Guttera pucherani), Kwazulu Natal, South Africa

Richard Du Toit / Crested guineafowl {Guttera pucherani} Mkuzi GR, South Africa