Mousa
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| Mousa | |
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| Location | |
  Mousa
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| Mousa shown within Scotland. | |
| OS grid reference: | HU460240 |
| Names | |
| Gaelic name: | |
| Norse name: | Mosøy |
| Meaning of name: | Old Norse moor or mossy island |
| Area and Summit | |
| Area: | 180 ha |
| Area rank (Scottish islands): | 116= |
| Highest elevation: | 55 m |
| Population | |
| Population (2001): | 0
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| Groupings | |
| Island Group: | Shetland |
| Local Authority: | Shetland Islands |
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| References: | [1][2][3] |
Mousa (Old Norse: "Mosey") is a small island in Shetland, uninhabited since the nineteenth century. The island is known for Mousa Broch, an Iron Age round tower and is designated as a Special Protection Area for storm petrel breeding colonies.
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[edit] Geography
Mousa lies a mile off the east coast of Mainland Shetland about 15 miles (24 km) south of Lerwick. Almost divided in two by inlets, East and West Hams, the island is 1.5 miles (2.4 km) long and almost 1-mile (1.6 km) in maximum width. Geologically beds of hard sandstone alternate with muddy limestones that weather to produce fertile soil. A quarry provided flagstones for Lerwick.[1]
Mousa’s fertile soil supports a rich diversity of plants, including sheep’s-bit and creeping willow in the herb-rich grassland, despite the wind, salt spray and grazing by sheep.[4]
The Norse tended to consider an island to be something that they could circumnavigate, and this included being able to drag a boat over land. Thus Mousa was considered two islands, namely North Isle and South Isle.
[edit] History
Mousa Broch is the best preserved Iron Age fortification in the British Isles.[5] The 2000 year old round tower stands above a rocky shoreline, one of a pair of brochs guarding Mousa Sound. The other, at Burraland on the Mainland is far less well preserved. Many brochs were the focus of a settlement, but there has never been a full archaeological investigation to confirm this at Mousa. It was cleared out in 1860 and 1919. Mousa has survived intact to such a height and is thought to never have been much higher than it is today. It escaped stone gathering for nearby stone walls and croft houses (now ruined).[6]
The entrance passage into Mousa is long, reflecting the enormous thickness of its walls. At its base the broch is 15m in diameter, but the interior is only 6m in diameter. Within the huge thickness of the base of the walls are a range of chambers probably used for storage, while at higher levels passages run between the inner and outer skins of the wall. On the inside a steep flight of steps leads to the top of the wall. Half way up is a landing which probably gave access to an upper level of the interior of the broch, built on a ledge running around the circumference of the interior.[6]
[edit] Conservation
Mousa is known for grey and common seals, guillemots, arctic terns and storm petrels.[7]
Mousa holds c.6,800 breeding pairs of European Storm-petrels in total. This represents about 8% of the British population and 2.6% of the world population.[8][9] The island has been designated a Special Protection Area[10] and is run as a reserve by the RSPB.[7]
Storm petrels may also be found at the reserve of Haaf Gruney.
[edit] Transport
The island is readily accessed using the passenger-only ferry which operates from the Shetland Mainland at Leebitton, Sandwick in summer time.
[edit] Footnotes
- ^ a b Haswell-Smith, Hamish. (2004) The Scottish Islands. Edinburgh. Canongate.
- ^ Ordnance Survey
- ^ Anderson, Joseph (Ed.) (1893) Orkneyinga Saga. Translated by Jón A. Hjaltalin & Gilbert Goudie. Edinburgh. James Thin and Mercat Press (1990 reprint). ISBN 0-901824-25-9
- ^ Mousa Reserve guide (pdf). RSPB. Retrieved on 2007-12-10.
- ^ Overview of Mousa. Gazetteer for Scotland. Retrieved on 2007-12-10.
- ^ a b Mousa Broch. Undiscovered Scotland. Retrieved on 2007-12-09.
- ^ a b Mousa. RSPB. Retrieved on 2007-12-10.
- ^ Ratcliffe, N., D. Vaughan and M. White (1998) The status of Storm Petrels on Mousa, Shetland Scottish Birds 19:154-159
- ^ Harrop, Hugh and Tipling, David (2002) The Storm Petrels of Mousa Birding World 15(8):332-333
- ^ SAC Standard Data Form (pdf). JNCC. Retrieved on 2007-12-10.
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