The Cockle Strand and the Cockle Folk

Tràigh Mhòr, Isle of Barra, Outer Hebrides, Scotland

Barra's airport runway is a flat tidal beach used both by aircraft and by cockle-gatherers. The cockles, by Barra tradition, are kept fertile by a small people who live just beneath the sand and who do not like to be heard digging.

Tràigh Mhòr — the Big Beach — is a vast flat tidal sand at the north-east end of the Isle of Barra, two miles wide at low tide. It is the only airport in the world that uses a tidal beach as its scheduled runway: flights from Glasgow to Barra land at low water and the schedule is determined by the tides, not by clock-time. The strand is also one of the best cockle-grounds in the Hebrides. The cockle population has supported Barra families for at least a thousand years; salted Barra cockles were a trade good shipped to the Lowlands and Ireland through the medieval period and a staple food well into the 20th century. The cockle folklore of Barra is unusual. The cockles, by local tradition, are kept fertile by a small people — the Daoine Sìth nan Saigheann, the People of the Sand-Sieves — who live just beneath the surface of the strand at low water. They are seldom seen but they can sometimes be heard, on still days, working in the sand: a faint sifting sound, like sand being moved through a wire sieve, coming from no visible source. The Cockle Folk tolerate the gathering of cockles by humans, provided certain customs are observed. The gatherer must work alone or in close-related family pairs. The gatherer must not whistle. The gatherer must leave a portion — by Barra tradition, one cockle from every basket of twenty — buried back in the sand at the end of the morning's work, "for the wee people." And the gatherer must never, ever, gather at the new moon, when the cockle-folk are reckoned to be holding council. These customs are still informally observed by the Barra families who gather cockles commercially. The yields, by their account, have been stable for generations despite mechanical harvesting having damaged similar beaches elsewhere in the British Isles. The Barra cockle-fishery is one of the few small-boat shellfisheries in the United Kingdom to have maintained sustainable yields without regulation. The local explanation is that the Cockle Folk see to it.