Roadside Hawks build nests from medium to high heights in trees. Nests are compact platforms built with twigs, leaveas and tree bark. They measure between 20 and 46 cm diameter and between 6 and 36 cm deep. They lay 2 whitish eggs that measure 48 x 37.5 mm and weight 35 g. Incubation lasted 37 days (del Hoyo et al. 1994, Panasci & Whitacre 2002, Navarro et al. 2007).