Aegithalos concinnus
Marked geographical variation, and very preliminary genetic studies suggest that this species may, in fact, represent an unresolved species swarm. Races divided into three groups, iredalei forming one group, annamensis another, and remaining four races forming “nominate group”. Race annamensis is morphologically distinct, and its separation as a full species could well be justified on this basis alone. Some SE Asian populations of this species of uncertain racial affinity: thus, birds in NW Thailand presumed to belong with pulchellus, those in EC Laos (.. View all taxonomy...
Aegithalos concinnus
Marked geographical variation, and very preliminary genetic studies suggest that this species may, in fact, represent an unresolved species swarm. Races divided into three groups, iredalei forming one group, annamensis another, and remaining four races forming “nominate group”. Race annamensis is morphologically distinct, and its separation as a full species could well be justified on this basis alone. Some SE Asian populations of this species of uncertain racial affinity: thus, birds in NW Thailand presumed to belong with pulchellus, those in EC Laos (.. View all taxonomy...