Bulletin of the British Ornithologists' Club
Vol. 129, (September) 2009.
LEE, M. T., DONG, D. L. & ONG, T. P. A photographic record of Silvery Pigeon Columba argentina from the Mentawai Islands, Indonesia, with notes on identification, distribution and conservation
and Birding Asia 11 (August 2009)
state that the
Silvery Wood Pigeon (Columba argentina) might have been rediscovered.
This would be a sensation if this would be really the case
Unfortunately i am not able to get these two articles.