REPORT ON THE MIGRATION OF BIRDS. 201 
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 :— 
July 14th. 600to 700. Q9am.to8pm. Wind KE. Clear. 
Seeteth. 200: 9 am. to 8 p.m. re due laze: 
pe 6th. 40 to 90. 12 noon to7 p.m. se ie, Elaze: 
» 22nd. 200 to 400. 10a.m. to 7 p.m. » N.-N.E. Fog, rain. 
» 24th. 100to 200. 8a.m. to 6 p.m. » o.W. Clear. 
» 26th. 3800 to 400. 1lla.m. to7 p.m. » §.W. Haze. 
eeoth. 90 to 100. 7 a.m. to 8 p.m. » %.W. Haze, rain. 
oo. OLSt. 60 to 80. 10 a.m. to 5 p.m. » 8. Haze, showers. 
Aug. Ist. 100 to 300. 8a.m. to 6 p.m. » W. Haze, rain. 
» ord. 800to400. 9am. to 6 p.m. » EH. Clear. 
oe 4th, 60to 70. 10 a.m. to7 p.m. ») ds, Hog, clear. 
a ath. 20 to 380. 8am. to 5 p.m. » N.E. Fog, rain. 
eect. 40to 50. (9 .a.m. to 6 p.m. a LNs peg, rain, 
feo. 20to 40. Sam.to7 pm, , N. Fog, rain. 
ee 9th. 20. 9 a.m. to 5 p.m. » N. Haze. 
Thus it will be seen that from 2150 to 3080 were estimated to 
pass westward within view of Cape Wrath, between July 14th and 
August 9th, during fifteen days occupied on migration. All 
which were observed passed during the day—say between 7 a.m. 
and 10 p.m.—and apparently in all winds and weather. From 
the Butt of Lewis Mr. Edgar supplies the general information 
that the Solan Geese pass the station, arriving first in May, and 
leaving in the latter end of October, but giving no particulars as 
to direction of flight. At Mull of Galloway Solan Geese are 
reported as passing, on July 19th, in flocks. Mr. N. B. Morrison 
reports as follows :—“ Saw them flying past to W.S.W. in wedge- 
shaped flocks as if on a passage, or changing locality.” This was 
during the forenoon; wind §., light, and haze. ‘“ At 1 p.m. it 
began to rain, and continued for twenty-four hours; rain guage 
at 9 a.m. of 20th, 1°72 inches. On 2lst, 22nd, 23rd, and 24th, 
2D 
