Eider Mar 2004
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The Eider is the Quarterly Newsletter of the Argyll Bird Club: Scottish Charity Number SC 008782 on seabirds. As a result of these articles, March 2004 Editorial the need for urgent action is now appreci- ated by a wider audience. We hope this ate last year I asked Margaret Sta- publicity will lead to an increase in fund- Editor ley if she could design a new logo ing for locally-based action plans. Clive L for the club’s new website. Marga- Craik’s article below, further highlights Steve Petty, Craigielea, Kames ret provided four very attractive designs this problem, and ably demonstrates that that were circulated early in the New Year mink-depleted waterbird communities can Tighnabruaich, Argyll PA21 2AE be restored! to the committee for their opinion. The Phone 01700 811235 logo at the top of this page was chosen For contributions to this issue, I would unanimously! This will now be used in like to thank Clive Craik, Paul Daw, Jim E-mail: [email protected] The Eider and on the new website— Dickson, Bob Furness, Mike Gear, David thanks Margaret. Merrie, Alan Spellman, Margaret Staley and Michael Thomas This leads me onto the acquisition of illus- Inside this issue trations for The Eider. To date this has relied heavily on one person—Margaret Sealoch Birds 2 Staley! While we all greatly appreciate Spring Meeting Margaret’s superb pen drawings and Recent Committee Meeting 2-3 paintings, I’m beginning to exhaust the Will be held in the Royal supply that she kindly provided. So, this is Marine Hotel, Hunter’s Quay, Latest Argyll Bird Report 3 a desperate plea to all you budding artists. It’s also an appeal to photographers. Over Dunoon on Saturday 27th Woodland Bird Survey 3-4 the last few issues, the number of colour March 2004 4-5 photographs has slowly increased, and I Bute—40-years Ago The programme is on page 5 could now use more in each issue. They Spring Meeting Programme 5 don’t all have to be of birds! Hopefully, many of you will have received a digital Autumn Meeting Book review 6 camera for Christmas—so now’s your chance to show what you can do!! I’m To be held at the Cairnbaan Field Trips 6 sure you’ll agree that the use of sketches, Hotel, near Lochgilphead on paintings and photographs greatly en- A Day to Remember 7-8 hances the appearance of our newsletter. Saturday 6th November 2004 2002 Peregrine Survey 8-10 Win a Bottle of Wine! 10 The club’s new website will be St Kilda of the Recent Bird Reports 10-12 accessible from 20th April at: Sealochs Terns and Mussel Rafts 12-13 http://www.argyllbirdclub.org Here’s something to think about. The Oystercatcher 13 Waterbirds (seabirds, wildfowl and wad- Recent Publications 14-15 ers) breeding regularly on St Kilda—16 species The club’s new website boats. Eilean an Ruisg is another small, (http://www.argyllbirdclub.org) will be Waterbirds breeding regularly on Eilean insignificant-looking islet (90 x 60 m) accessible from 20th April. The site is not Inshaig in Loch Craignish—16 species yet complete, as you will soon see. It is close to the marina in Loch Feochan, just anticipated that it will take about a year to Waterbirds breeding regularly on Eilean south of Oban. These two tiny islets have complete most of the blank pages. I would an Ruisg in Loch Feochan—13 species the highest waterbird diversity (variety of breeding species) of all 150 or so small be interested in any feedback about how Eilean Inshaig is a small, rather unprepos- you think the site can be further improved. islands that I visit every year. However, sessing islet (a mere 150 x 25m in size) by my main point is that most small islands A recurring theme in the last few issues the marina at Ardfern, surrounded every like these are very rich in this way. To has been the dilemma of mink predation summer by bustling yachts and small To receive the electronic version of The Eider in colour, members should send their e-mail address to the Editor (contact details above). Past issues (since June 2002) can be downloaded from the club’s website (address on back page). The Eider find eight or ten waterbird species breed- and Shag are regulars at islands in bigger by a member at the club AGM in Novem- ing alongside each other is not unusual. sealochs, making twenty species alto- ber 2003. Regrettably, no-one has yet Most strikingly, the vast lengths of gether. These breeding bird communities controlled mink enough at Tayvallich, or mainland shore, just a stone’s throw away, of the sealochs are unique reservoirs of are barren in comparison. A few species biodiversity. such as Oystercatcher, Common Sand- piper and Mute Swan breed, spaced sin- Second (and you knew I’d get round to gly, along the mainland shore, but most of this), these unique sealoch communities the sealoch species rarely or never breed are rapidly disappearing because of mink “Mink control doesn’t bring back just there. The mainland certainly has nothing predation. Introduced, American mink are the terns or the Black-headed Gulls, like the fantastic densities of gulls, terns the only land predators that easily and but many species” and Eiders found on the tiny islands. In routinely reach such islands. Whole-island May, you have to look where you tread to breeding failures due to mink predation avoid the eggs; and in June and July, if are widespread. Repeated year after year, you don’t bend down and part the vegeta- they eventually drive the colonies to ex- tinction. When I started visiting such sites tion with every step, you are likely to at many other islets, although there have in the early 1980s, every sealoch between crush the chicks that are hiding there. That been brave attempts. Mink control doesn’t Loch Ailort in the north and West Loch is why some of these islands now have bring back just the terns or the Black- Tarbert in the south held one or more tern “please don’t land” notices, not to spoil headed Gulls, but many species – perhaps colony (always with other species, as everyone’s holidays, but to discourage all twenty, perhaps even more! The suc- above), usually on the islet furthest up unintentional slaughter. Incidentally, in cess at Inshaig, Ruisg and elsewhere each loch. Now most of these have gone. Finland and some other Nordic countries shows that, with enough effort, it can be When such a variety of species disappears it is illegal to land on islets like these in done. Anyone else interested in restoring locally, whole sealochs become strangely the breeding season, and everyone knows these St Kildas of the sealochs? why and respects the tradition. Interest- empty and silent each summer. Where ingly, it is the small islets high up the they survive, it is almost always because Clive Craik sealochs that hold the greatest number of mink are controlled in the area, either by breeding species, probably because they gamekeepers for pheasants or by amateur offer the most varied habitat. Larger is- conservationists committed to saving sea- Field Trip to the Farne lands in sounds and firths may hold much birds. Islands—Cancelled greater numbers of nests but they have Finally, for many years I have counted the many fewer species. breeding numbers and species, and inves- For obvious reasons I won’t press the tigated breeding success and causes of ue to a lack of interest, this trip failure on most islets along the coasts of comparison of these two islets with St on 4-6th June (see December Kilda any further, but it does raise a few mainland Argyll and part of Lochaber. At 2003 Eider) has been cancelled. more interesting points. present, the above two unremarkable islets D (that most readers have probably never Editor First, many of the sealoch species are even noticed?) are the most species-rich in different from those on pelagic St Kilda this large area, but at one stage both had and different again from more typical severely reduced waterbird communities seabird colonies closer to the mainland, that were approaching extinction after Committee Meeting such as the Treshnish Isles. I don’t need to many years of mink predation. On 15 June Notes list the St Kilda or Treshnish species (see 1985 at Ardfern, I remember adult terns an excellent article on the club’s visit to and gulls hovering in a dense flock just the Treshnish Isles in the September 2003 above the ground on Inshaig, intently but he committee last met at the George Hotel in Inveraray (as Eider), but you may be interested in the helplessly watching a mink killing their rd sixteen species breeding regularly on the young. On 22 June I removed armfuls of T usual) on the 3 February for a islet at Ardfern - Mute Swan, Canada dead adult terns, gulls and Black Guille- pleasant supper and get-together before Goose, Shelduck, Mallard, Eider, Red- mots. There was a much bigger kill of the meeting. Once the minutes of the pre- breasted Merganser, Common Sandpi- adults there in 1987, and after three suc- vious meeting and related matters had per, Oystercatcher, Black-headed Gull, cessive years of total breeding failure been dealt with, the agenda included items Common Gull, Herring Gull, Lesser during 1992-1994 and one of near- on forthcoming indoor meetings, field Black-back, Great Black-back, Com- complete failure in 1995, very few birds trips and promotional and publicity mate- mon Tern, Arctic Tern, Black Guille- remained.