“Over the past 10-15 years I become more aware of Oriental Magpie-robin (Copsychus saularis musicus) with odd tail development or moults.
The above is a juvenile (notice gape and plumage) with what I expect as ‘normal’ development. The tail feathers have grown out, black above and white below.
“The image above is of an odd immature male bird, the kind that has become more common to observe in recent years. The plumage in general is moulting into adult plumage, no juvenile gape, but the tail is short with the white under feathers better developed that the black feather on top. I do not consider this an adult moult but a first year bird.
“Above shows a bird that has adult male plumage but again the tail is odd with white feathers grown out, but the black covering feathers still to develop. Is this the final stage in some juvenile-to-adult-moult or is this an adult-tail-moult?
“The above is the same bird feeding on a caterpillar.”
Dato’ Dr Amar-Singh HSS
Ipoh, Perak, Malaysia
22nd September 2017
Location: Ipoh, Perak, Malaysia
Habitat: Urban environment