The birds of the Eresma at Hontanares Nature · Hontanares de Eresma, Alfoz de Segovia, Segovia Image of Hontanares de Eresma, not of the place itself. The river corridor brings together oak woods, riverside groves, ash stands and pinewoods where hoopoes, red kites, herons, black vulture, griffon vulture and otter have been recorded, a diversity uncommon so close to the provincial capital. Photo: Discasto (CC BY-SA 4.0) What to see and do in Hontanares de Eresma