“We are not happy with this latest Yellow-vented Bulbul (Pycnonotus goiavier analis) sub-adult in our garden. Of the latest brood of Yellow-vented Bulbuls, this ‘young’ has yet to leave. We have observed that the bird is still begging for food despite the parent’s reluctance to feed it. There have been a number of altercations with the adult parents, possibly attempts to tell it to leave.
“As clinicians, both my wife and I are unhappy with the quality of its plumage. Although it looks reasonably adult the plumage looks unhealthy. Grooming is also poor.
“We have previously seen a similar situation some years back and that young also had microcephaly (smaller head than normal). That young was not able to fend for itself and was eventually chased off by the adult parents.
“We think this may be due to environmental toxins. We do not use any chemicals in our garden but that cannot be said of our neighbours or our city at large.
“Appreciate any responses or opinions.”