One of Ireland's best-known wild animals, the Sika deer, has been declared an invasive species in the European Union, raising questions around whether it must now be culled. The smallest of the country’s three wild deer, Sika was added to the EU list of alien invasive species of union concern last summer. Its inclusion means countries must eradicate the deer, control their populations or prevent their arrival in the first place. 

 Damien Hannigan, Irish Deer Commission Spokesperson joined Pat Kenny on the show to discuss.