Leptosomus discolor, Print, The cuckoo roller or courol (Leptosomus discolor) is the only bird in the family Leptosomidae, which was previously often placed in the order Coraciiformes but is now placed in its own order Leptosomiformes. Its nearest relative is not clear. Morphological evidence may suggest a placement in or near to Falconiformes. In the rather comprehensive DNA study by Hackett et al, this and the hoatzin are the only two birds whose position is unclear, although the cuckoo roller seems to be at the root of a group that contains the Trogoniformes, Bucerotiformes, Piciformes, and Coraciiformes., 1700-1880.

Leptosomus discolor, Print, The cuckoo roller or courol (Leptosomus discolor) is the only bird in the family Leptosomidae, which was previously often placed in the order Coraciiformes but is now placed in its own order Leptosomiformes. Its nearest relative is not clear. Morphological evidence may suggest a placement in or near to Falconiformes. In the rather comprehensive DNA study by Hackett et al, this and the hoatzin are the only two birds whose position is unclear, although the cuckoo roller seems to be at the root of a group that contains the Trogoniformes, Bucerotiformes, Piciformes, and Coraciiformes., 1700-1880

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28.4 x 38.6 cm | 11.2 x 15.2 in (300 dpi)