20 REPORT ON THE MIGRATION OF BIRDS. 
record of Redwing again at Pentland Skerries, with hight N.N.E. 
airs, an apparent rush of which at same place between 26th and 
31st. Flocks and intermittent movements all the month from 
8th to end, of all three species. November, however, bulks 
largest from Stations IV., VII, VIII., [X., X., XIV., XV., and 
XX VIL, during the whole month, Fieldfares predominating far 
beyond the numbers of other Turdidw. Whilst many “flocks” 
are recorded all through the schedules south of VIIL. (N. Ronald- 
shay) to XIV. (Pentland Skerries), and even appearances at 
XV. (Dunnet Head), fewer records are given north of VIII, 
and none occur between XV. and XXVII. (Isle of May). A 
rush is only very decidedly shown at Isle of May on 10th, 
when thousands of Fieldfares and other Thrushes round station 
at 9.30 a.mM., with a S. wind, and flew on southwards. On the 
17th there is a “rush” recorded of Redwings at XXVII. 
at 1 a.M., light E. haze—six killed. Immense numbers of the 
several species of Zurdide,—yviz., Fieldfares, Song Thrushes, 
Redwings, but curiously we do not find a single entry of Black- 
birds anywhere during the whole Autumn Migration, which 
extended all through December and January, though in smaller 
numbers as compared with November. Prevailing wind all 
October, northerly and easterly; south-easterly and easterly in 
November, but the rush came with due 8. wind. When westerly 
winds occurred, as usual fewer records. In December, winds 
various, but more westerly than November, but in January again 
back to E.* 
SaxICOLINzZ.—Spring, confined to April and May. Records 
from VIII. (North Ronaldshay), XIV. (Pentland Skerries), and 
XXVII. (Isle of May) of Wheatears, Whinchats, and Redstarts. 
The “ Stonechats” of the N. Ronaldshay Schedule are probably 
Wheatears, a rush of which took place there on April 4th—the 
earliest record—at twelve noon; wind light south. Wheatears 
arrived pretty numerously at XX VIL, to breed there, on 20th 
April. Earliest Redstart at XIV., with strong 8.S.E. wind and 
fog, marked “rare,” on 29th April; but earliest at XX VII. 
on the 18th, one 6, light west, and haze. Towards the end of 
1 Addition to List of Birds of the Isle of May. —Dipper (Cinclus aquaticus, L.), 
the British form—shot April 22d, 10 a.m., light west haze—now in Collection 
at Isle of May, under curatorship of Mr J. Agnew. 
