Support for Scottish independence has risen after Britain's three main political parties warned the Scots they would not be able to keep the pound if they left the United Kingdom, the first opinion poll following those comments showed.
The message sparked an angry response from Scottish leader Alex Salmond who said Scotland had every right to continue to use the pound and that "bullying" from London would create a backlash.
A Survation poll in the Scottish Daily Mail on Thursday seemed to bear that prediction out.
It showed the gap between those who would vote for and against independence in a referendum scheduled for September 18 had narrowed to 9 percentage points from 20 points.
The poll with interviewing 1,005 people found 38 percent support for Scotland ending its 307-year union with England, up from 32 percent in January, while 47 percent would vote to stay in the UK, down from 52 percent, and 16 percent were undecided.
"It is clear that there has been a severe backlash to (British Finance Minister) George Osborne's bluster and threats on the pound," Scottish National Party deputy Nicola Sturgeon said in a statement.
"... Far more people [are] more likely to vote Yes [to independence] on the back of the Westminster establishment's attempted bullying rather than No."
European Commission President Jose Manuel Barroso also ruffled Scottish feathers on Sunday, saying it would be "difficult if not impossible" for any breakaway state to join the European Union.
Salmond said blocking Scotland's access to the pound would hurt both sides of the border as currency translation costs would impact trade between Scotland and the rest of the UK.
He has argued that the pound is a shared asset and Scotland could refuse taking a share of liabilities such as the UK's 1.2 trillion ($2 trillion) pound debt if it was refused access.
But finance minister Osborne said Scotland would lose the pound if it voted for independence.
The Survation poll also found 65 percent of respondents wanted Salmond to come up with a Plan B for the currency.