'Mavis'- 11th of August 2003
'Helen'- 17th of July 2004
'Hilary'- 10th of October 2005
Much appreciated, I found the 2008 studbook online and I'm assuming they thought they were males when they were named? Given those dates they correspond to Hugo for Mavis, Howard for Helen and there is no birth recorded on 10th October 2005, two animals were born in this year 'George' born 2nd August 2005 and 'Geoffrey' born 10th September 2005. I'm leaning towards this potentially being an incomplete studbook as it also lists Longleats animals as Spot and 'Big Female'.