Closely related to C. bollii with which it is sometimes considered conspecific, but differs in larger size, with very much larger feet (judged at 3); silver-grey-and-blackish display feathering on neck-sides and hindcollar vs green patch on neck-side (3); much narrower breast-band (2); silver outer edges to primaries (1); paler overall coloration ([ns]1); and also vocal differences. Also related to C. palumbus, C. unicincta and probably C. junoniae. “Columba laurivora” is an objective junior synonym, originally proposed on basis that “trocaz” was not a Latin word#R. Monotypic.
Madeira; formerly also on neighbouring island of Porto Santo#R.
Food and feeding
Status and conservation
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