Today is St David's Day and the new daffodils are popping up all over the Lleyn peninsula in north Wales. So is the new graffiti.
"Dal dy dir [Stand your ground]," says the writing on the walls. It is the slogan of Cymuned, a new pressure group dedicated, like others before it, to protecting the culture and language of Wales.
But it is also fighting a housing crisis prompted, it claims, by English incomers who snap up homes for holidays or retirement at prices locals cannot match.
"I want restrictions on inward migration because we just cannot cope with the levels we are seeing now. We are being swamped," said Seimon Glyn, a Cymuned activist and also a Gwynedd councillor for Plaid Cymru. His home (with glorious sea views) near Nanhoron has risen from £67,000 to £175,000 since 1996.
Simon Brooks, one of Cymuned's founders, says native speakers on the Lleyn and in the county of Gwynedd have only the sea behind them: there is nowhere else they can go.
The language debate went underground in the run-up to devolution when all sides wanted to make sure Wales got its assembly. But migration continued to swell, pressure on the language increased and house prices soared.
"People don't even look in estate agents' windows any more," said Mr Glyn. "The average salary is about £12,500 and unemployment is 7.5%. Most people can't afford anything costing more than about £36,000."
When chairman of Gwynedd's housing committee, Mr Glyn commissioned a survey which showed that a third of the housing stock was being sold to outsiders. On the Lleyn peninsula, the scenic northern arm of Wales's embrace of Cardigan Bay, it is estimated that more than 80% of homes are sold to people outside the county.
He decided to speak out "colourfully" and said the housing situation ought to be monitored. He claimed Labour politicians in Wales interpreted that as a call for restrictions on the English and denounced him as a racist. "But it's nothing to do with race," he added. "It's to do with language and culture."
Out of the debate emerged Cymuned to challenge the 40-year-old Cymdeithas Yr Iaith Gymraeg (the Welsh Language Society): 600 packed a village hall on the Lleyn for one its first meetings.
Cymuned goes for the sophisticated approach. It lobbies politicians and the Welsh assembly, has taken its case to Unesco and compares the plight of the indigenous Welsh to that of native peoples in Australia, New Zealand, Brazil and North America.
It has also come up with proposals ranging from controls on estate agents to language qualifications for incomers. It points out that it is much harder to move into the Lake District (and perhaps soon the New Forest) than Wales.
"I think people who move to this part of the world have a responsibility to learn Welsh," said Simon Brooks, editor of the current affairs magazine Barn and one of Cymuned's founders.
"They make a free choice to move to a Welsh-speaking community - but responsibilities go with that.
"This community has always had a tradition of direct action for the language," added Dr Brooks. "What Cymuned has done has been quite novel - this respectful, constitutional lobbying position. But if we cannot deliver to our own people, it will be impossible for us to hold that line. I don't have a moral problem with non-violent direct action."
No one will burn down houses. But some English-owned homes might be peacefully occupied and "executive developments" targeted.
Mr Glyn is more cautious. "I'm going to have to be really careful what I say here. I can't speak for anyone else but I will be extremely angry if we don't win the political argument.
"I don't know how that will be expressed. If there is no political will, we would have to think about a new strategy. We are not just going to go away."
The irony of plans by the home secretary, David Blunkett, to introduce language and citizenship tests for immigrants has not been lost.
"Blunkett is proposing far stronger measure [than we have in mind] to tie language in with citizenship," said Dr Brooks. "I think we have a greater moral right to do that than he has because no one could begin to claim that the English language is in danger."
Bombing campaigns
1969 Two members of the Free Wales Army blow themselves up while apparently planning a bomb on a railway line along which Prince Charles was due to travel to his investiture at Caernarfon
1979-94 Meibion Glyndyr (Sons of Glyn Dwr) fire-bomb 300 English owned homes
1989 Meibion Glyndyr declared that "every white settler is a target". The group also placed incendiary bombs in Conservative party offices in London and estate agents' offices in London, Liverpool, Sutton Coldfield and Haverfordwest
1990 Poet and priest RS Thomas calls for a campaign to deface English owned homes
1993 Sion Aubrey Roberts, a member of Meibion Glyndyr, was jailed for nine years for sending letter bombs to Conservative politicians