year on our west coast is Rhu Stoir, but two records here evidently
refer to the spring migration, being June 6th and 10th, when two
were seen on each day. The most northerly station noted during the
autumn migration is Ardnamurchan; thence southwards at Skerryvore,
Dhuheartach, Rhuvaal, Skervuile, Rhinns of Islay, and Loch Ryan. The
earliest date on which they were recorded is 29th July, when one was
seen at Dhuheartach at 6 p.m.; wind N., fresh, with clear weather.
The latest record is Sept. 25th, when forty or fifty were seen at
Rhuvaal, at 4 p.m.; wind S.W., fresh, with rain. The length of time
thus occupied by the migration along the west coast of Scotland was,
approximately, fifty-eight days. The greatest rush took place between
the 20th Aug. and 25th Sept.; and, as far as shown, at Ardnamurchan
and Rhuvaal. At Ardnamurchan, twenty rested all night on Aug. 20th,
and left in the morning. At Rhuvaal forty to fifty were seen, as
related above. Swallows appeared to migrate principally when the
wind is southerly (S.W. to S.E.), in light, variable, or fresh head-
or side-winds, and hazy weather. Exceptions are found, however, at
Dhuheartach on July 26th, when the wind was N., fresh, and weather
clear; and at Skerryvore on Aug. 17th, when one appeared at the lantern
about 10 p.m. (two hours after lighting up) in a N.W. light breeze,
with showers. Swallows migrate mostly by day, resting all night. My
returns show that they passed at all hours, but mostly before dark.
Martin, _Hirundo urbica_.--Martins are noticed at two stations only,
_viz._, Butt of Lewis and Corsewall. The migration lasted between July
29th and Aug. 16th, or during eighteen days (but data are defective).
They travelled during the day, resting around the lighthouses at night,
with S. to S.E. and S.W. winds; the only one killed was when wind was
N.N.E., at Corsewall.
Wren.--The records are few of this species: usually noticed on
migration in large numbers; they appeared at Monach Island and
Dhuheartach. The earliest date is Aug. 17th, when "some" struck at
10 p.m., and between that and 3 a.m.; wind W., and haze. The latest
date is Dec. 9th, when one was seen at 3 p.m., with S.W. breeze, and
showers. In fourteen years Mr. Edgar never saw a Wren at the Butt of
Lewis lighthouse.
Goldcrest, _Regulus cristatus_.--At Mull of Galloway on July 18th,
alighting all night and resting. Mr. Edgar's letter of 20th Sept.
supplies the information that he has never seen Goldcrests at the
Butt of Lewis--a negative fact of value in tracing their exact lines
of flight. Perhaps in our next reports observers will state in their
remarks if any of the species noticed in this one have hitherto been
rare, or entirely absent from their stations in past years.
Robin.--Appeared at Kyleakin, and thence southwards at Skerryvore,
Rhuvaal, Skervuile, Rhinns of Islay, and Corsewall. The largest number
recorded at Corsewall, where fifteen struck on Sept. 15th, at 11 p.m.;
wind S.W., light breeze, and haze. The earliest date is Sept. 10th--one
at Skervuile, at midnight; wind S.W., light, and cloudy. The latest is
at Rhuvaal, on Dec. 4th at 9 a.m., when one was seen; wind variable,
light breeze, clear. Thus, time occupied is between Sept. 10th and Dec.
4th. A rush took place in September between 10th and 21st, but no
large numbers are recorded; in October another rush between 7th and
18th; on the former date numbers migrated with Larks and other species
not known, and many were killed and fell into the sea at Skervuile.
At Skerryvore one seen at 7 p.m.; wind S., fresh, with fog and rain.
In September I have records on six days at four stations; in October
two at two stations, and in December one at one station--Rhuvaal; they
passed or struck mostly at night or morning, but a few through the day;
winds mostly southerly, and hazy or foggy; a few in cloudy and clear.
Hedgesparrow.--At M'Arthur's Head, on Sept. 28th, one struck at 1 a.m.;
wind N.W., strong, with haze and rain.
Wheatear.--Wheatears or "Stonechecks" are recorded from Skerryvore as
the most northerly station this year, and thence southward at Rhuvaal,
Skervuile, Turnberry, Corsewall, and Mull of Galloway. The earliest
appearance noted is on Aug. 15th, and the latest on Sept. 28th; thus
the migration extended over forty-four days. The greatest rush was
between Aug. 17th and 22nd. The migration took place entirely at night,
and principally with southerly winds--S., S.W., and to W.; fewer in
northerly or easterly winds. The favoured stations were Skerryvore,
Rhuvaal, and Skervuile.
Titmice.--The negative information that Mr. Edgar never saw any Titmice
at the Butt of Lewis lighthouse is worthy of record. I have notes of
their occurrence at M'Arthur's Head and Lamlash; in each case a single
bird struck the lantern, Nov. 16th and Aug. 17th, at 6 p.m. and 10 a.m.
respectively; both during west wind, and light air.
Fieldfare.--Occurred at Monach Island and Douglas Head, and is reported
as usually seen at Butt of Lewis, though not this year. At Monach
Island a number struck, and fifteen were killed, between 8 p.m. and 4
a.m., on Oct. 21st and 22nd; wind S.W., fresh, and drizzling rain. At
Douglas Head one was seen on Oct. 16th, at 10 a.m.; wind N., moderate
breeze, and cloudy.
Thrush.--The most northern station is, for 1879, Isle Ornsay. Mr.
Edgar; however, adds the general information that in most years the
Butt of Lewis yields large numbers at the lantern; thence southward
at Skerryvore, Dhuheartach, Rhinns of Islay, Lochindaul, Lamlash,
Corsewall, and Point of Ayre. The earliest date is Sept. 19th, when a
mixed flock of Thrushes and Blackbirds passed in variable winds, and
clear, at Lamlash. The latest date is Dec. 3rd, when "Thrushes" passed
Lochindaul in the "daytime." But this may be due to local influences
and hard frost then registered. The next latest date is Nov. 24th,
when one was seen in the daytime, 2 p.m.; wind N.E., fresh, clear;
this would give sixty-six days for the passage, or, taking the later
date of Dec. 3rd, seventy-six days. The rushes were on Sep. 19th (_ut
sup._); a "great rush" Oct. 21st to 28th. On Oct. 21st at Point of Ayr,
two hundred "along with Blackbirds" seen at 1.80 p.m.; wind N. and
N.W., strong, clear, with occasional showers. Also at the Rhinns of
Islay, five seen, and so through records of Oct. 22nd, 18th to 28th,
when three hundred "dark grey birds larger than a common Thrush!!?"
(probably Missel Thrush, _Turdus viscivorus_) were seen at Point of
Ayr; wind S.S.E., light, and hazy; and at Skerryvore about forty
(of which ten killed) at 7 p.m.; wind S.E., light breeze, and haze.
Thrushes travel with winds from S.E. to S.W. by preference, but also
with winds from W. to N.E., through N.; observed most, as with most
other species at lanterns, in hazy and rainy weather, but the great
rush took place in "clear, with occasional showers," and "hazy and
fine." Returns show that out of sixteen dates reported upon, only three
show a diurnal migration, but one of these three is the rush of three
hundred "dark grey birds larger than a common Thrush"[15] on Oct. 28th,
at Point of Ayr.
[Footnote 15: We shall refer to these under "Birds unknown," but we
have thought it advisable to enter them here also; they can easily be
erased in future comparisons if better data come to hand.]
Blackbird.--The northernmost locality is Rhuvaal, where one struck on
Dec. 1st, at 2 p.m., wind N.E., fresh; thence southwards at M'Arthur's
Head, Skervuile, Pladda, Lamlash, Corsewall, Mull of Galloway and Point
of Ayr. The earliest date is Aug. 26th, at M'Arthur's Head. The latest
date is Dec. 1st, at Rhuvaal. The time thus occupied by the migration
was ninety-seven days. The rushes took place between 13th and 21st
Oct., and the most favoured locality recorded is Point of Ayr, where on
Oct. 21st two hundred "mixed Thrushes and Blackbirds" were seen at 1.30
p.m.; wind N.N.W., strong, and clear, with occasional showers. They
were visible at the various stations in all winds, apparently from W.
to E. and from S. to N.N.W. They appeared at all hours of the day and
night, but most of the records apply to night migration.
Starling.--The records of the Starling are very general; the most
northern station given is Butt of Lewis, where the remark is made
that they generally strike. This year, however, the most northern is
Ardnamurchan Point, thence southward at Dhuheartach, Sound of Mull,
M'Arthur's Head, Skervuile, Rhinns of Islay, Corsewall, Portpatrick,
Mull of Galloway, and Point of Ayr. The earliest date on record is Aug.
11th, at M'Arthur's Head and Loch Ryan; at the former, one struck at 10
p.m., in S. wind, fresh, with haze; at the latter, two struck at 11.30
p.m.; wind E., light, with fog. The latest date is Dec. 18th, when one
was caught at Skervuile at 11 p.m.; wind S.W., fresh, with haze. Thus
the time occupied in passage was one hundred and thirty days, but the
last date may have been due to local influence and keen frost at that
time registered. The next latest date is Nov. 23rd, which would make
the time spent in passage one hundred and four days. Rushes took place
more frequently than with most species noted; thus, Sept. 19th, Oct.
12th to 25th, and Nov. 11th and 17th, may all be characterised as dates
of rushes. The most favoured localities were Corsewall and Portpatrick,
for frequency of records; and Ardnamurchan Point, Dhuheartach,
Portpatrick, and Point of Ayr, for numbers of individuals. Starlings do
not seem to have any choice of wind, as far as returns show. We find
them migrating with N., W., and S.E. winds in almost equal proportions,
with a preference--but very slight--to W. winds. They also pass or
strike in E., S., and N.W. winds, but in fewer numbers. We do not think
any deductions can be drawn from these data. But Starlings breed at
many of the lighthouses or in their vicinity, so it is not always easy
to determine whether, in every instance, they are on migration or not
(as remarked by more than one reporter, _e.g._, Mr. Edgar, at the Butt
of Lewis, &c.). Out of seventeen dates reported on, only three show
migration to have taken place during the day, _viz._, at Portpatrick
(in two instances), and Ardnamurchan Point (3 p.m. in a gale).
Finches.--At Dhuheartach on Aug. 24th, one hundred were seen and twenty
killed between p.m. and 2 a.m., wind N.N.W., with haze; on Oct. 4th,
six seen in afternoon, wind light and variable, with clear weather;
again, on Oct. 8th, two were killed at 7 a.m., calm, with fog. The
above are all the returns of "Finches."
Linnet.--Only two records. At Rhuvaal on Sept. 9th, thirty to forty
old and young, were seen around the lantern at 10 a.m.; wind E. to N.,
breeze to stormy, with haze; and at Lamlash on same date and at same
hour, fifty were seen; wind fresh breeze from W., and clear.
Yellowhammer.--At Lamlash on Aug. 17th, one struck at 10 a.m., in light
W. wind, and fog.
Snow Bunting.--At Monach Island, farthest north recorded, and at
Dhuheartach and Corsewall. Earliest appearance Sept. 19th, when a
flock was seen at Monach Island at noon, with S.W. light wind, and
clear weather. Latest date Dec. 10th, when one was caught at Corsewall
at 10 p.m.; wind variable, light, and haze; thus, time occupied was
eighty-two days. A. rush took place probably about Sept. 19th, when a
flock was seen at Monach Island,--but our data are scanty,--and another
about Nov. 10th, when a flock passed Corsewall. Other dates of record
are Oct. 10th and 18th; they passed in N.W. and N. winds, in clear or
cloudy weather; also in September in S.W., with clear weather, and
variable wind, with clear or haze. All the records are during the
night, except one at 12 noon, at Monach Island on Sept. 19th; wind
S.W., clear.
Lark.--The most northern station noted this year was Dhuheartach, and
thence southward they are noticed at M'Arthur's Head, Skervuile, Rhinns
of Islay, Lamlash and Corsewall. The earliest date is Aug. 17th, when
twenty struck at Dhuheartach between 10 p.m. and 3 a.m.; wind W., with
haze. The latest date is Dec. 6th, when one struck at 9 p.m.; wind
S.E., fresh, and haze, at Corsewall; the time thus occupied was one
hundred and twelve days (but the last was no doubt due to the severe
frost inland at that time). The previous date is Nov. 18th, which would
make the time only seventy-nine days. The greatest rush appears to have
been in October, about the 12th to 24th, but the numbers observed are
so small that it is difficult to judge. The locality most favoured was
Dhuheartach, whence I have returns on eight different dates, between
Aug. 17th and Nov. 24th. An earlier rush took place about Aug. 17th
to 21st, at Dhuheartach and Skervuile. A later rush about Nov. 15th
to 18th at Dhuheartach, Skervuile, and Rhinns of Islay, but of small
dimensions. Larks appear to migrate principally when the wind is W.
to S.W., or late in the season, when still more southerly, say S.
Exceptions occur at Dhuheartach on Nov. 24, when wind was N.E., fresh,
and weather clear; at Rhinns of Islay on Nov. 7th, wind N.W., light
breeze; at Skervuile on Oct. 10th, when wind was N.; they migrate in
calm, variable, light, or fresh winds, and are noticed at lanterns
principally in haze and fog. They migrate mostly at night, at all
hours, but the majority pass between 7.30 p.m. and 4 a.m. Those passing
during the day were travelling when the wind was N. or N.E.; those
passing at night when the wind was S. to W. So the returns show; but
whether this indicates any _law of migration_ or not remains to be
proved by further observation.
Lapwing.--The most northern station which they were observed to pass
at this season was Rhu Stoir; thence southward, they are reported at
Isle Ornsay, Lochindaul, Devaar, Pladda, and Portpatrick. The earliest
date given is Aug. 20th, when "flocks" were seen during the day in N.
wind and clear weather; the latest is Dec. 11th, when one was killed at
Pladda, at 2 a.m., wind S.E., light breeze, with haze. The next latest
date given is Nov. 14th, when twenty-two were seen at 8.30 a.m. at
Portpatrick, wind S.E., and haze. The time occupied, therefore, this
year is from eighty-six to one hundred and thirteen days. Rushes took
place about the 20th to 25th August, when several flocks passed Isle
Ornsay and Lochindaul; again, Sept. 16th to 25th, a flock at Devaar,
Portpatrick and Chickens Rock; another rush at Rhu Stoir, Portpatrick
and Lochindaul about Oct. 27th. Lapwings travelled in clear or haze,
rain, or showers, principally in S. and S.E. winds, on the west coast;
but also in N. wind on Aug. 20th, and in W. and S.W. at Rhu Stoir and
Lochindaul on Oct. 23rd and Nov. 1st respectively They appear to travel
equally by day and night.
Plover.--Three stations give returns of this species, _viz._,
Skerryvore, Rhinns of Islay, and Portpatrick. The earliest date is July
27th, at Portpatrick. The latest date is Oct. 18th, at Skerryvore. The
time thus occupied by the migration was fifty-three days. The principal
rush took place about the beginning of September, and the favoured
station was Portpatrick, where they were always observed prssing inland
with a S. to S.W. wind, light or strong breeze, during the daytime.
Individuals struck lantern of Rhinns of Islay at night, when wind was
N., N.W., or S.E.
Oystercatcher, _Hæmatopus ostralegus_.--At Isle Ornsay on Nov. 18th,
one struck at 10.30 p.m.; wind S., light, with haze, and rain.
Heron.--At Dhuheartach on Oct. 8th, one seen at 7 a.m.; calm, fog. At
Rhuvaal, Oct. 1st to 30th, "Storks" (afterwards identified as Herons)
passed at 9 a.m.; wind variable, light, with showers.
Curlew.--Island Glass is the most northern station noted for this
species; southwards at Dhuheartach, Pladda, Portpatrick and the Mull
of Galloway. The earliest date recorded is Aug. 3rd, when eighteen
were seen passing Portpatrick at 10 a.m., wind E.S.E., strong breeze,
with haze; the latest date is Nov. 20th, when eight were seen passing
Island Glass, flying southward, at 2 p.m., wind light S.W., with clear
weather Thus the time occupied was one hundred and nine days. A rush
took place in August--say 3rd to 26th--and again in November, 15th to
20th. Dhuheartach seemed to be a favourite station. Curlews migrated in
all winds, and "boxed the compass" from E.S.E., through S. to S.W., W.
and N.N.W.; they passed mostly at night. Two exceptions were at 10 a.m.
on Aug. 3rd, and 2 p.m. on Nov. 20th, at Portpatrick and Island Glass
respectively.
Whimbrels ("Small Curlews"), _Numenius phæopus_.--At Lochindahl on
Sept. 20th, seen for several days in flocks; wind S. to W., and rainy.
Sandpiper (sp.?)--At Rhinns of Islay on Aug. 22nd, one struck at 1
a.m.; wind S.E., light, and haze.
Turnstone, _Strepsilas interpres_.--At Rhinns of Islay on Nov. 8th, one
struck at night; wind S.W., fresh, and haze.
Snipe.--At Isle Ornsay, a single Snipe takes position as the
northernmost recorded at the lighthouses of the west coast in 1879, as
late as Oct. 20th, killed at 10 p.m.; wind N., clear. Thence, records
at Skerryvore, Dhuheartach, Rhinns of Islay, Pladda, Mull of Galloway,
and Douglas Head. The earliest date, Aug. 20th ("sp. not known"), 4
a.m. at Pladda; wind S.E., strong breeze, and haze.[16] As a doubt
occurs, next earliest date--a long jump later--is Oct. 11th at Rhinns
of Islay when one was killed between 12 p.m. and 3 a.m.; wind N.,
light, with haze. The latest date is Nov. 15th, when, at Rhinns of
Islay, sixteen were killed between 6 p.m. and 4 a.m., wind S., breezes
and haze; and another record occurs at Pladda. Thus from Oct. 11th to
Nov. 15th marks thirty-five days for passage. Snipe are thus seen to
make a rapid passage. (Local migrations occur earlier from moors to
lowland marshes in Scotland, September always producing home-bred birds
in our lowland marshes.) Rush of foreign birds middle of November,
1879, as far as we can judge; but on Oct. 18th "numbers" kept about all
night round lantern of Skerryvore; wind S.E., light breeze, fog, and
rain. Migration mostly at night, judging from records, but also by day.
[Footnote 16: This may have been a Sandpiper.]
Woodcock.--The northernmost station on west coast in 1879 is Island
Glass; thence southwards at Dhuheartach, Rhinns of Islay, Lochindaul,
Devaar, Corsewall, Mull of Galloway, and Douglas Head. Small numbers
recorded in all cases, except at Lochindaul, when about forty passed
during the daytime on Dec. 12th, when the wind was variable, light,
and the weather clear. The earliest date was Oct. 11th; one killed at
Rhinns of Islay at 10 p.m., wind N., light, clear; the latest Dec.
12th. Too few data to fix rushes, except the one in December, which
no doubt was directly caused by the severe frosts then recorded; wind
N. and W., except on two occasions, on Oct. 7th at Douglas Head, wind
E.; and on Oct. 30th at Mull of Galloway, wind E.; and on two others,
_viz._, variable and light, when (in the hard frost) the forty were
seen.
Corn Crake, _Crex pratensis_.--Heard for first time at Lochindaul, June
2nd; at Kyleakin, June 9th, wind S.W., clear; and at Skerryvore, June
20th, wind strong S.E., with fog.
Wild Geese (sp.?).--At Monach Island a flock "mixed old and young"
passed south at 10 a.m. on Dec. 13th, wind S.S.W., fresh breeze, with
haze; this is the most northerly station noted. Thence southward they
were seen at Kyleakin (passing N.W.) at 8 a.m., wind N.W., fresh
breeze, and clear weather; also at Sound of Mull, M'Arthur's Head and
Devaar. The earliest date is Aug. 17th (passing N.W.), and the latest
Dec. 15th (twenty-four passing W., at Sound of Mull). A migratory
movement is thus seen to have extended over one hundred and nineteen
days. A rush took place on Oct. 20th and 21st, at Sound of Mull and
M'Arthur's Head; and again on December 18th, 14th and 15th, at Monach
Island, M'Arthur's Head, and Sound of Mull respectively; the direction
of their flight was usually W. or N.W. On Dec. 13th a flock passed
S.; most passed with a S., S.S.W. or S.W. breeze, in cloudy or clear
weather; in two instances with a N.W. wind. They were observed during
daylight.
Wild Swan.--At Devaar on Dec. 11th, six seen at 4 p.m., light airs,
with haze; and on Jan. 4th, three were seen flying south, in clear
weather, at Rhuvaal lighthouse. We say nothing of the reported
occurrence of _Cygnus americanus_ on our coasts, but think the record
(p. 111) premature.
Wild Duck.--At Butt of Lewis a Duck was killed on Dec. 1st, at 8 p.m.,
wind E., light and clear. Others occurred in November and December at
Rhuvaal and Devaar. At Rhuvaal, between Nov. 1st and 30th, three or
four hundred Ducks passed between 8 a.m. and 3 p.m.; wind variable,
light, and showery weather. Most of the migration seems to have been
observed through the day. In none of the reports are the species
identified, being described as either "Ducks" or "Wild Ducks."
Widgeon, _Anas penelope_.--At Monach Island on Oct. 27th, a few were
seen at 12 noon; wind S.S.E., fresh, and clear.
Sheldrake, _Tadorna vulpanser_.--At Pladda, on May 23rd, six (two males
and four females) seen at 1 p.m., wind N.E., light, and haze; remained
on the island till the middle of June.
Eider Duck.--At Rhu Stoir on June 30th, two males and two females seen
at 11 a.m.; wind S., fresh breeze, showers. At Dhuheartach on Dec. 3rd,
twenty seen at 10 p.m.; wind N.E., light, clear. At Devaar on Dec.
13th, twelve seen at 1 p.m.; wind N.N.W., light breeze, haze.
Storm Petrel.--At Butt of Lewis in July, August, and September, an
occasional bird at the glass, always at night, always in hazy or rainy
weather, generally "haze and rain" together; wind in three out of four
instances S.W., and once on July 3rd, W.N.W., stormy. At Rhu Stoir a
good many were observed "not on passage" between 17th and 20th Aug.
between 6 p.m. and 10 p.m., wind N. to E., light, haze and rain; and at
Rhinns of Islay on Sept. 17th, one struck at 2 a.m., wind S., light,
and haze.
Sea-fowl.--The following notes upon sea-fowl as observed at several
stations--notably at Cape Wrath--will, we think, prove interesting:--At
Cape Wrath, Mr. M'Gill reports all the sea-fowl as deserting their
breeding-haunts there on Aug. 16th, and both old and young flying
westwards. He roughly estimated the numbers which passed within his
ken as follows:--300 to 400 Guillemots, 800 to 900 Razorbills, 800 to
900 Puffins, 100 Scarts, and 300 Sea-gulls. This was performed in an
east wind, during hazy or rainy weather (see also under Solan Goose),
and all left Cape Wrath in one day and about the same time, _viz._, 10
a.m. The Gulls passed continuously between 9 a.m. and 3 p.m. Notes from
other stations can hardly be considered as applying to anything but
local daily migration in search of food, as is constantly witnessed at
any rock-bird station on the coast; thus, at Rhu Stoir large numbers
passed towards S.W., and are specially noted on June 12th to 15th; also
at Kyleakin, a large flock passed southward at 2 p.m., wind S.E. When
at the Shiant Isles this summer, at the end of June, I witnessed a
regular departure of thousands of Puffins to their feeding-grounds in
the Little Minch, about 9 to 10 a.m.
Sea Gulls.--At Cape Wrath on Aug. 10th, three hundred passed west
between 9 a.m. and 3 p.m.; wind E., haze, and rain. "Sea Gulls bred
at the station, and all left on the same day, both young and old. The
migration goes all to the west."
Kittiwake, _Rissa tridactyla_.--At Skervuile on May 31st, two at noon
flying north; calm, clear.
Tern.--At Dhuheartach, six seen on the evening of Aug. 27th, wind S.,
cloudy; and four at the same station on the morning of Sept. 4th.
Birds unknown.--At Portpatrick on July 12th, a flock of small birds
passed overhead at 8.30 a.m., wind S.S.E., fresh, and rainy; and on
Oct. 13th a flock passed inland at 4.20 p.m., wind S.W., and rain;
on Nov. 13th "a flock of birds not known" passed inland, wind E. by
N., and clear. At Pladda on Aug. 20th, one Snipe, species not known,
at 4 a.m., wind S.E., strong, and haze; and another on Nov. 15th.
At Skervuile, on Nov. 14th, a number from 10 p.m. to 2 a.m., wind
variable, light, and haze; and others on Oct. 7th at Skervuile; "many
killed and fell into the sea."
Red-breasted Merganser.--At Corsewall, on July 20th, a "strange Duck"
(since identified as a Red-breasted Merganser) was killed at glass at 2
a.m.; wind E., light, with haze.
Solan Goose, _Sula bassana_.--At Cape Wrath and other stations upon our
coasts, an extraordinary annual migration of Solan Geese is witnessed.
Mr. M'Gill has reported to me specially on that of 1879, and kept as
accurate a record as possible of the numbers which he estimated to
pass westward. He writes as follows:--"The number of Solan Geese that
migrate past Cape Wrath is beyond anyone's power to number, but I have
come as near to it as possible. The first half of July the flocks were
composed of old birds, and the rest of the time they were mixed old and
young." Mr. M'Gill then gives the following list of Solan Geese seen
passing west on fifteen days, between 14th July and 9th August, which I
reproduce here:--