SNH says it is now investigating other sources of funding for a large scale removal
Hedgehogs are alien to the Hebrides but in 1974 four were introduced by a gardener
in Daliburgh in South Uist to keep down slugs.
An extermination programme to kill them off was launched in 2003 but SNH later conceded
to allow trapped hedgehogs to be kept alive and relocated on the mainland.
Before previous funding ended, North Uist was been effectively cleared of hedgehogs
but South Uist - the worse hit area - is still overrun by the species which are blamed
for dramatic declines in wading birds on the island over the past 25 years.
Video cameras set up near nests have caught alien hedgehogs redhanded, providing
vital proof for the first time that they are actively hunting for baby birds and
newly laid eggs.