Skull of Colaptes melanochloros at different postnatal stages: days 2–3 (A, B) and days 9–10 (C–G). A right lateral view of the skull and neck, B dorsal view of the skull and first cervical vertebrae, C dorsal view of the skull, D detail of the relationship between the os supraoccipitale and os epioticum, E os mesethmoidale in right lateral view, F os mesethmoidale in dorsal view, G Dorsal view of the basis cranii interna and first cervical vertebrae. Scale bars: 5 mm (A–C, G), 2 mm (D–F).