>ia j. II. GunxEv ON ounithological migrations. 
53 
as well as for the enormous numbers in which commoner species 
often pass it. 
!My statistics for Heligoland have been chiefly taken from the 
“ ^ligration lieports ” and the ‘ Zoologist,’ to which they have been 
communicated by Herr Giitko, through !N[r. John Cordeaux. Herr 
( iiitke, who has taken a great interest in the matter, was so good 
ns to verify some of them, and make a few slight corrections and 
additions from his journals, going back as far as ISGG, wdien I had 
, the pleasure of making his acquaintance, and being shown his 
marvellous collection, in the rocky island whore ho lives. 
Tlie statistics for Kngland have boon collected from ‘The Zoologist,’ 
or from tlio “Migration lieports” published under the auspices of 
Tho British A.ssociation. Ami, liero again, I am greatly iudobtod to 
tho pen of Mr. Cordeaux, who has kept up a continuous register 
for Lincolnshire and part of Yorkshire, and to Mr. Henry Stevenson, 
who has done tho same for Norfolk.* 
Island ok HiaiooLANU. 
LS66. 1807. 
Herr Giitko does not note any 
migrations of birds in large numbers 
in 1800 and 1867. [lie however 
notes the Yellow-browed Warbler 
{Phylloscopus superciliosus) in Sep- 
tember and October, 1807, — tho 
latter being the month in which 
one is said to have been obtained at 
Cheltenham in England. It is a 
species which has occurred many 
times in Heligoland. The appear- 
ance of tho Eed-necked Grebe 
(Podieeps rubricollis) in numbers 
on our East Coast in 1865 had no 
counterpart in Heligoland.] 
1868. 
In August and September, Cross- 
bills (Loxia cnrvirosira) in great 
abundance. 
East Coast of England. 
1868. 
In the summer and autumn, many 
Crossbills. 
* An interesting paper on the most remarkable migrations in England, 
in each year, from 1803 to 1876, by ilr. J. (^rdeaux, appeared in ‘ The Field ’ 
of ilarch 11th, 1876, continued March 18th. It would be of much value if 
reprinted, and brought up to date. 
