A photo identification study shows that the same pod of transient orcas have been seen four times on the western and southern seaboards between 2008 and 2011.
March 15, 2008 in Kalpitiya, 1 adult orca
December 29, 2008 in Mirissa, 2 orcas
January 31, 2010 in Kalpitiya, 2 orcas
January 30, 2011 in Kalpitiya, 3 orcas incl. calf
The last two sightings were exactly one year apart in the same area and were travelling southbound on both occassions.