Sasia Explained

Sasia is a genus of birds in the woodpecker family Picidae, that are native to the Old World. They are very small, virtually tailless woodpeckers, with a crombec or nuthatch-like appearance and foraging habits. Their habitat is forest and secondary growth.[1]

These species have a flesh orbital ring and a rounded (in cross-section) upper mandible. They have ten rectrices and only three toes (absent first digit, or hallux).[2]

The African piculet has sometimes been included in this genus. It has only eight rectrices and four toes in a zygodactyl arrangement (a weak first digit). It differs from the Asian species in the plumage colour of the adult, but not in the plumage pattern, body anatomy or in habits.[3]

Species

The genus contains two species:[4]

Image Common name Scientific name Distribution
Sasia abnormismainly Malaysia and Indonesia
Sasia ochraceamainland Southeast Asia

Notes and References

  1. Book: Stevenson . Terry . Fanshawe . John . Field guide to the birds of East Africa: Kenya, Tanzania, Uganda, Rwanda, Burundi . 2001 . T. & A.D. Poyser . London . 9780856610790 . 280–281.
  2. Book: Gorman . Gerard . Woodpeckers of the World: The Complete Guide (Helm Photographic Guides) . 2014 . Bloomsbury . London . 978-1408147153 . 88.
  3. Delacour . J. . The significance of the number of toes in some woodpeckers and kingfishers . The Auk . January 1951 . 68 . 1 . 49–51 . 10.2307/4080797 . 4080797 . 20 September 2018.
  4. Web site: Gill . Frank . Frank Gill (ornithologist) . Donsker . David . Rasmussen . Pamela . Pamela Rasmussen . January 2023 . Woodpeckers . IOC World Bird List Version 13.1 . International Ornithologists' Union . 29 January 2023 .