Port Essington, Northern Territory.
Closely related to C. indica and C. stephani, and hitherto considered conspecific with former, but differs in forehead and supercilium buffy-maroon vs white (3); crown to hindneck poorly defined slaty grey vs sharply defined pale grey (2); white shoulder patches clearly much larger (2); and rusty-rufous in primaries much more pronounced (ns), such that an alternative name for the species might be “Rusty-winged Emerald Dove”. Race rogersi previously listed as “chrysochlora”, but this name apparently based on several different forms of Chalcophaps and lectotypification excludes its application to Australasian populations#R. Proposed race melvillensis (Melville I, off N Australia) is on average a little paler than mainland longirostris, but differences considered too slight to merit taxonomic recognition. May include C. norfolciensis, a name long used for Columba leucomela, based only on a dubious description; an 18th-century watercolour “discovered” in 1953 showed, however, that this name more probably applied to another bird that occurred on Norfolk I at that time, possibly the present species; the name is almost certainly unidentifiable, and has now been formally suppressed#R#R#R. Four subspecies recognized.
Food and feeding
Status and conservation
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