REPORT ON THE MIGRATION OF BIRDS. 169 
Swans.—Three Swans seen at North Ronaldshay flying south 
at 2.30 p.m., with W.N.W. fresh wind and clear, and again at 
same place at 9.30 a.m., on Nov. 27th, swimming on the water ; 
wind strong N.E., and clear. At Pentland Skerries eight were 
seen at 2 p.m. on Oct. 26th; wind hight W. and clear. At Dunnet 
Head three old and one young seen going §.W., at 1 p.m., breeze 
light, on Sept 14th; and three old birds again on Sept. 22nd. 
Ducxs.— At Tarbet Ness a large flock of ducks passed inland 
at 10 am., with a N. gale and snow, on Nov. 12th. At Girdle- 
ness, two ducks seen at 4.40 a.m., wind S.W., and haze, on 
Oct. 16th. At Tarbet Ness a large flock seen at 9.15 a.m., wind 
W., strong and snow, on Dec. 5th. At Dunnet Head seven ducks 
(Widgeon) stayed on the lake three days from Oct. 25th; arrived 
with W. to N.W. breeze and cloudy. 
GuititEMot, Uria troile—At Pentland Skerries a flock seen 
on June 25th, at 7.15 p.m.; wind E.N.E., and light haze. (Com- 
pare with notes on W. coast at Cape Wrath and elsewhere.) 
Porrix, Mormon fratercula.—At North Unst innumerable 
Puffins seen on evening of April 24th. 
Common Sxva (or “ Bonxie”), Stercorarius catarrhactes.—At 
North Unst, usually appear about middle of April. ‘‘ We do not 
see more than six or eight in a season.” 
Perret, Thalassidroma pelagica.—Seen at North Unst in 
August, and at Dunnet Head on Oct. 10th, wind strong W., and 
haze, at 11 p.m. 
Tern, Sterna.—Only one record. One struck at Pentland 
Skerries at 8.30 p.m. on Sept. 8th; wind strong S., and fog. 
Terns always appear upon our Stirlingshire coast the end of 
August and beginning of September, remaining usually about a 
fortnight to three weeks. 
The unusual scarcity of migrants is very generally reported 
upon at almost all the east coast stations. The remarks of the 
reporters, comparing the observations with former years, generally 
show this to be the case. Thus, commencing with our most 
northerly station, North Unst, I find it stated that, in most 
seasons, “Land birds, as Snow Buntings, Stonechats, and 
Starlings, strike the lantern.’ It is also stated that—‘‘ Until 
the last three years, large flocks of Iceland Gulls were seen 
during the month of April, going N.W. A few returned this 
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