Multiple bones (humerus, radius, ulna, tibia and femur) of 11 individuals were sampled for histological analyses. In three specimens, ornamental rectrices were clearly visible, whereas in six others ...

STM4-1 is a juvenile (Fig. 1a), as indicated by several features: longitudinal striations are present on the surfaces of long bones owing to incomplete ossification; the neural arches are not fused to ...

Thin and long tailed, with outer tail feathers almost entirely white (tail from below looks white). The bill is thin and pale gray. Breeding male: blue-gray above, including most of head and back.