(1849) Muscadivora aenea insularis.
THE NICOBAR IMPERIAL GREEN PIGEON.
Carpophaga insularis Blyth, J. A. S. B.; xxvii, p. 270 (1858) (Nicobars); Blanf. & Oates, iv, p. 20.
Vernacular names. None recorded.
Description. Differs from M. ae. aenea in having the under tail-coverts a dull reddish-brown; the grey of the head and underparts is still purer without any pink or vinous tinge; the green of the upper parts is darker and more blue; the tail is more blue and darker both above and below.
Colours of soft parts. " Legs and feet dull deep pink, pinkish-red or livid purple ; the bill is pale plumbeous, paler on tip and darker on cere and base; irides vary a good deal, sometimes they are pale ruby-red; the eyelids are pale lavender'' (Hume).
Measurements. Wing 222 to 260 mm.; tail 152 to 177 mm. ; tarsus 25 to 30 mm.; culmen about 25 to 31 mm. Weight 1 lb. to 1 lb. 12 oz. (Hume), 1 1/2 lb. (Richmond).
Nidification. Davison found it breeding in Trinkut in February and March, obtaining one egg from a nest built in a coco-nut palm, about twenty feet from the ground. The egg measured 48.2 x 34.8 mm.
De Roepstorff obtained a fully-fledged young bird on the 20th February.
Habits. Similar to those of M. aenea aenea except that it is very tame. It is said to be very common on all of the islands of the Nicobars, sometimes associating in small flocks, at other times being found singly or in pairs.