Náttúrufræðingurinn - 1968, Side 105

NÁTTÚRUFRÆÐINGURINN
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tlie front of the nostrils, in clangula the nailwidth is less than 11% ol' the
billwidth.
3. All Icelandic records of Bucephala clangula are listed bclow. Two of the
published records (in brackets) are rejected. Sight records of other than
adult xnales are included in parentheses, although none of these is a case
of positivc identification. Circumstantial evidence is fairly strong, lxowever,
that the females and/or immature males involved since 1960 were clángula.
(1) d" (and 9) seen in the delta of Héradsvötn, Skagafjördur, N. Iceland,
23 june 1885 (Slater and Carter 1886 a, b, Slater 1887, 1901).
(2) d" ad. (and d" imm.?) Eyjafjördur, N. Iceland in winter 1885—1886.
(Slater 1887, 1901). Present wliereabouts of the specimens are unknown,
the identity of the immature male is therelore doubtful.
[9 ad. and S imm. Eyrarbakki, SW. Iceland, 20 January 1889 (Nielsen MS.,
Hantzsch 1905). One of the specimens is in Zoologisk Museum, Copenhagen,
tliis is an islandica.]
[9 with young seen on river Sog, SW. Iceland, July 1889 (Millais 1913. 1919).]
(3) d ad. Vestmannáeyjar, about 1890 (Gröndal 1891, 1901, Slater 1901,
Hörring MS.). Specimcn in Museum of Natural History, Reykjavík, now lost.
(4) cT ad. Mývatn, 30 June 1904 (Saemundsson 1905). Specimen in Reykjavík.
(5) cf ad. Mývatn, lO May 1910 (Millais 1913, Schiöler 1926, Dinesen 1926).
Specimen in Copenhagen.
(6) Juv. (unsexed) Heimaey, Vestmannaeyjar, 27 October 1939. Specimen in
Reykjavík.
(7) cT (and 9) seen near Bjarmaland, Axarfjördur, NE. Iceland, in spring
1949 and again in late May 1954.
(8) cf ad. river Hnausakvísl at Sveinsstadir, N. Iceland, 20 June 1956. Speci-
men in Reykjavík.
(9) 2 dd (and at least 4 9 9 /imm, all in one flock) seen 26 December 1960,
(2 9 9 /imm.) seen 3 January 1961, an 1 d (2 9 9 /imm.) seen 15 January 1961.
All near Hafnir, SW. Iceland.
(10) 2 cf cT (with 2 9 9) seen on river Sog, SW. Icelancl, 13 January 1963.
(11) d" ad. Seltjarnarnes, SW. Iceland, 1—3 May 1963. Specimen in Reykjavík.
(12) 3 cfcf seen Mývatn, 18 June 1963, and 2 dV on 19 June.
(13) Total of 4 cf d (and 14 9 9 /imm.) seen along river Sog, 29 Desember 1963.
(14) cf seen in a flock of Barrow’s Goldeneyes (Bucephala islandica) on river
Laxá near Mývatn, 30 May 1964.
(15) 3 first year d'd' (and 1 9) seen on Mývatn, 2 June 1964.
(16) Single d seen among Barrow’s Goldeneyes at Vogar, Mývatn, on 26, 27
and 29 December 1964.
(17) 3 d’d' (1 9) seen along the Sog on 27 December 1964.
(18) 1 cf on 5 June 1965, and 3 cTd' on 6 June, seen with a flock of Barrow’s
Goldeneyes on Mývatn (see fig. 3).
(19) Numerous observations along the Sog in winter 1965 to 1966: 5 cfd1 (6 9 9
or imm. cfd") on 31 October 1965, 3 J o' (ancl 2 9 9) on 26 December 1965, 9
cfd" (and about 6 9 9) on 9 January 1966, 10 d'd" (4 9 9) on 10 January 1966,
8 cTd" (ancl probably 15 9 9) on 6 l'ebruary 1966. The birds were moslly seen