Photo of the Day: Assimilation

A telephone pole near Upington in South Africa is covered by nests made of twigs and grass by sociable weaver birds. Photographer Dillon Marsh’s ‘Assimilation’ project shows how the birds make good use of the manmade poles in a landscape with few real trees. We will have a gallery of his photos on the Telegraph site later today. (Dillon Marsh/Rex Features)