The question as to the geographical range for this species has been difficult to determine as it cannot be certain which specimen constituted Jerdon's type. The type-locality is Madras but there are three specimens of Jerdon's in the British Museum, two labelled "Madras" and one labelled "India." In writing my * Indian Pigeons and Doves' I excluded this last specimen from my consideration but Robinson has since ascertained that it was obtained at Tellicherry on the Malabar coast. It is a very big bird, with a wing of about 160 mm. Of the other two specimens one is rather small and the other very small but this last was collected by Baber, who did much collecting in Ceylon, so that the locality on the label, not in Baber's handwriting, may be wrong. My reasons, therefore, for disagreeing with Hartert in naming the Ceylon bird leggei and retaining the name bicincta for the Continental bird are not good and I now agree with him. Robinson's praetermissa must also be admitted, the excellent material brought home by him showing it to be distinguishable from the Indian race.
Key to Subspecies.
A. Larger;. wing over 150 mm.
A.Darker and more green............... D.b. bicincta, p. 191.
B.Lighter and more yellow…………..D. b. praetermissa, p. 193.
B. Smaller ; wing under 150 mm………………. D.b. leggei, p. 192.
* In N. Borneo it is definitely stated to migrate with the monsoons