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Oriental Dwarf Kingfisher or Rufous-backed Kingfisher? (1 Viewer)

dixonlau

Well-known member
Malaysia
Based on my own google, at first, I concluded it as Oriental Dwarf Kingfisher but based on other resources, it should be Rufous-backed Kingfisher. Some sources mentioned instead Rufous-backed Dwarf-Kingfisher. So I am confused which is which, or perhaps they are all correct?

Taken at Sarawak, Malaysian Borneo, Dec 2020.

resize_resize_PIC-20201215-151849-DSC06319-A7R3a-denoise.jpg resize_resize_PIC-20201215-152115-DSC06330-A7R3a-denoise.jpg


PIC-20201215-141449-DSC06237-A7R3.JPG PIC-20201215-152240-DSC06341-A7R3.JPG
 

njlarsen

Gallery Moderator
Opus Editor
Supporter
Barbados
The resource I used included only the name Rufous-backed Dwarf-Kingfisher as a valid species of the three you list.

Niels
 

johnallcock

Well-known member
The taxonomy of this group has been debated. Most authorities now split Rufous-backed from Oriental, but some may still list it as part of the same species.
Any of the three names you mention (Oriental Dwarf Kingfisher, Rufous-backed Kingfisher or Rufous-backed Dwarf-kingfisher) could be used, depending on which taxonomic list you use.
 

andyb39

Well-known member
What has happened to motleyi, the form occurring in Sabah? Is it still considered a valid taxon? It looks a bit like a halfway house between erithaca (Black-backed) and rufidorsa (Rufous-backed), with violet wings, magenta all the way up the back, either a magenta or a maroon crown and sometimes a violet patch at the rear of the ear-coverts. I seem to remember reading that you get intermediate forms as you go further west.

Luckily the OP bird is a fairly straighforward Rufous-backed.
 

KenM

Well-known member
Species provenance to one side, what an incredible looking bird and what superb images! 🤩
Cheers
 

njlarsen

Gallery Moderator
Opus Editor
Supporter
Barbados
What has happened to motleyi, the form occurring in Sabah? Is it still considered a valid taxon? It looks a bit like a halfway house between erithaca (Black-backed) and rufidorsa (Rufous-backed), with violet wings, magenta all the way up the back, either a magenta or a maroon crown and sometimes a violet patch at the rear of the ear-coverts. I seem to remember reading that you get intermediate forms as you go further west.

Luckily the OP bird is a fairly straighforward Rufous-backed.
Clements has motleyi as part of rufidorsa. It is difficult to figure out what happened in IOC 10.2.

Niels
 

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