Like every summer, from GREFA we offer different environmental volunteering activities so that you can collaborate with us in the execution of field works linked to our wildlife conservation projects in Castilla y León. Below, we detail the information of our next two volunteers, which will take place this July. 1st VOLUNTEER Objective: Integral restoration of ecosystems by the fauna of the agrarian media Dates: It starts on Monday, July 15 in the morning and ends on Friday, July 19 in the afternoon. Municipalities where we are going to work: Campo de San Pedro and Maderuelo (Northeast of Segovia, Natural Park of the Hoces del Río Riaza). Work: - Adaptation and setting of natural ponds and new construction. - Installation of poles with nest boxes and nest baskets for rapto