BIRDS. 
109 
Messrs. Small of Edinburgh, and sent to the then editor of 
the Field for identification. Tor three seasons following 
Mr. Osborne appears to have noted the arrival of these 
birds (on one occasion — 1862 — a male remained until 
November 8), but not afterwards (0. MSS., 1868). 
26. Sylvia salicaria (X.). Garden Warbler. 
27. Sylvia nisoria, Bechst. Barred Warbler. 
28. Meilzophilus undatus {Bodd.). Dartford Warbler. 
Sub-family PIIYLLOSGOFIN^. 
29. Regulus cristatus, Koch. Gold-Crest. 
Eesident in the south-east, where it breeds in the fir-woods so 
suitable to it. Large additions to its numbers arrive in the 
autumn, and thfese are scattered all through the district, as 
they do not then adhere so closely to the large woods, but 
haunt the smaller patches of birch and alder. A wonder- 
ful migration of this species occurred in the autumn of 
1882, stretching in width of migration-wave from Faroe, 
south to the English Channel, along our whole eastern sea- 
board, driven, helpless and exhausted, upon our shores, by 
strong continuous east and south-east winds. Much scarcer 
about Tongue since the winter of 1878-79. 
A resident species in Caithness, large additions arriving in 
autumn, which latter appear only to remain a few days 
during migration. A very great migration of these birds is 
noticed by Mr. Osborne as having occurred from the 9th 
to 12th October 1863 (0. MSS., 1868). 
Seems always to have been common in Caithness, and is 
marked so in Shearer and Osborne's List prior to 1862. 
Another unusually large migration took place in the 
autumn of 1882, which had been preceded by an almost 
correspondingly unusual " rush " in March and April of the 
