REPORT ON THE MIGRATION OF BIRDS. 193 
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 
1.30 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 S8.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” + on Oct. 28th, at Point of Ayr. 
Bracxpmp.—The northernmost locality is Rhuvaal, where 
one struck on Dec. Ist, 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. Ist, 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 8. to 
+ 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, 
2¢ 
