Náttúrufræðingurinn

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Náttúrufræðingurinn - 1981, Blaðsíða 25

Náttúrufræðingurinn - 1981, Blaðsíða 25
vatnssvæðinu að sumarlagi síðastliðin 25 ár og e. t. v. lengur. Mjög sennilegt er, að þeir hafi reynt varp fyrir 1981. I því sambandi má benda á fleyga ungann frá 1966. Ef til vill hafa flóastelkar orpið árlega, þó að varp hafi ekki verið stað- fest fyrr en 1981. ÞAKKIR Við viljum þakka Ævari Petersen aðgang að óbirtum gögnum og þýðingu yfir á íslensku. Einnig þökkum við pró- í'essor Sven-Axel Bengtson afnot af óbirtum gögnum. S U M M A R Y The Wood Sandpiper (Tringa glareolá) breeding in Iceland by C. A. Galbraith 4 Achagoil Minard, by lnveraray Argyllshire, Scotland and P. S. Thompson Ivy Cottage Culrain, by Ardgay Ross-shire, Scotland The Wood Sandpiper Tringa glareola has a wide breeding range, being particularly common in northern Europe. The most westerly brceding previously recorded being in Scotland, where small numbers breed re- gularly (Sharrock 1976). Thus lceland lies to the west of thc Wood Sandpiper’s normal breeding range. On 26 June 1981 a pair of Wood Sand- pipers were located in a marshy area north-east of Lake Mývatn in northern Ice- land. The area contained several small lochs all undergoing hydroseral succession. The lochs were separated by areas of marshy ground. The vegetation consisted mostly of grass and sedge with an underlying carpet of moss. The area supported a high density of other breeding waders. Tringa lotanus, Calidris alpina. Phalaropus lobatus, and Pluvialis ap- ricaria were all recorded. The Wood Sandpipers were initially dis- covered in part of this marshy area, close to one of the lochs (see Fig. 1). At one stage a bird, assumed to be the male, landed nearby and proceeded to sit on the ground as though on a nest. He remained like this for some 15 minutes, then rose from this posi- tion and sang, similar to the leero-leero-teero described by Witherby et al. (1940). A search of the area in which the bird had been sitting revealed no trace of a nest. Dur- ing the first day’s observation no young were seen, but one was heard calling close by. On returning to the area the next day, a thorough search revealed that the birds had moved over a small hill close to the smallest loch of the group, some 150 m from their previous position. After watching for some time two chicks were eventually seen foll- owing one of the adults through the vege- tation. One of the chicks, about 48 hours old, was quickly caught. On release the chick ran into the nearby loch and swam a short distance before returning to land. ’fhis is thus the first proven breeding record of the Wood Sandpiper in Iceland. This species was first recorded in Iceland in 1959, in an area south of Lake Mývatn (Gardarsson 1969). Since then it has been seen repeatedly in the Mývatn area. Gard- arsson (1969) mentions two further records from Mývatn, and the behaviour of one of these birds (from 1963) pointed to breeding. So did the birds from 1959 and 1961, which were both adult females. Some further rec- ords are mentioned below although this is not meant to be an exhaustive list of the 167

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