REPORT ON SCOTTISH ORNITHOLOGY IN 1920 147 
lantern on 12/13th and 13/14th October may have been passage 
migrants of the typical race or departing Z. 7. melophilus. 
HEDGE-sPARROW, Prunella modularis.—One visited Noss Head 
on 24th January, and some were at Pladda on 31st March. Noss 
Head, Lerwick, and Fair Isle record a small movement, probably of 
continental emigrants, from 3rd to 21st April. One or two Hedge- 
sparrows are noted at the Isle of May on 11th and 13th September, 
one at Noss Head on sth, 13th, and 25th October, some at Pladda 
on gth and 13th October, and two at Lerwick on roth October. 
WREN, Troglodytes troglodytes troglodytes.—Single birds visited 
Noss Head on 18th January and 3rd February, and some were at 
Pladda on 31st March. From zoth September to 24th October quite 
a lot of Wren movement is recorded from the Isle of May, Pladda, 
Noss Head, Killantringan, and Auskerry. Four Wrens at the Whalsay 
Skerries lantern on 14th October at 11 P.M. may have been 
TI. ¢. setlandicus. A few Wrens visited the Isle of May from 2oth 
to 25th November, and one was on Pladda on 21st November. 
SWALLOW, Mirundo rustica rustica.—First recorded on toth 
April near Kirkcaldy (Fife), Beith, and Dundee on rath, and 
Darvel and Longcroft on 13th April. After this there are many 
notes of arrival up to 4th May, by which time our breeding birds 
seemed mostly to be present. A very pronounced passage move- 
ment is recorded from Noss Head, Shetland, and the Outer 
Hebrides from rst May to 5th June. 
By mid-August autumn movement was apparent, and many 
notes come of departure during September and early October. 
Last seen, Cromarty and Largo 11th October, and Alticig 
(Wigtownshire) 16th October. 
HouseE-MartTIn, Delichon urbitca urbica.—Noted at Barrhead 
(Clyde) and at Yoker on 21st April, Summerston on 25th, and 
Longcroft (Tweed) on 29th April. Many arrivals at nesting- 
places are reported during May; even as late as the 3oth birds were 
still appearing at some breeding quarters. Considerable passage 
migration took place between 11th May and 17th June; a House- 
martin was at Vallay (O.H.) on 18th May, and several at Fair Isle 
on 30th June. Autumn movement was evident by 11th August, 
and many departures took place during September. One visited 
Foula on 30th September and 3rd October; last seen, Lundin 
Links 5th October. 
SAND-MartTINn, Riparia riparia riparia.—First reported at Duns 
on 28th March, and Summerston on znd April. Thereafter no 
more records come till 16th April, from which time till 10th May 
