230 THE ZOOLOGIST. 
the garden-wall, on a marshy flat between the garden and shore (the 
usual haunt of these visitors on their first arrival on the island). 
The birds appeared tired and very tame, and allowed an approach 
within eight or ten yards. I do not know how long these birds 
remained, but several were seen on the 9th and 10th, and when I 
visited the island on the 11th I was just too late to see a pair that 
had been on the island before I landed. On the same day, when 
going to Bartragh, a flock of about fifty Dunlins in full summer 
plumage passed our boat, flying up towards Castleconnor, and later I 
observed as many others feeding on the sands, while a small flock of 
eight or ten fed in a little bay by the marsh in which they bred last 
year ; these kept by themselves, and occasionally fled to and from 
the marsh, as if thinking of nesting there again this season. 
In last month’s ‘ Zoologist ’’ I was very much interested in Col. H. 
Meyrick’s account of a Chiffchaff mimicking Willow-Wren’s song, for 
a somewhat similar case came under my notice on April 22nd, 1887. 
I was passing a small plantation here when I heard feeble, subdued 
notes of Willow-Wren and Chiffchaff. The weather was cold, and as 
on their first arrival these birds’ song is always affected by the state 
of the weather, I thought both birds were trying their notes. I 
listened and watched for some time, but could only see one bird 
(a Chiffchaff), and he began with two or three notes of the Willow- 
Wren, ending with the Chiffchaff note, twice repeated. I listened 
and watched for a long time, until I satisfied myself that only the 
Chiffchaff was in the plantation. 
In Mr. C. Oldham’s ‘“ Field-Notes on the Birds of the Ravenglass 
Gullery” (ante, p. 166), I was pleased to see that the Sandwich Terns 
were breeding in company of Black-headed Gulls, confirming my ob- 
servations, on this west coast, that in every breeding haunt of Sand- 
wich Terns that I know of these birds associate with the Gulls, and not 
with the smaller Terns. At Cloona Lough, Rathroneen Lough, Lough 
Conn, and Lough Erne all the colonies were alongside of or among 
Black-headed Gulls. At the great breeding haunt of Arctic Terns on 
Ardbolan Island, off Drumeliff Bay, Co. Sligo, no Sandwich Terns breed, 
nor among the many hundreds of Arctic and Little Terns on the western 
end of Bartragh Island—RosBert WaRREN (Moy View, Ballina). 
Notes on the Birds of West Renfrewshire (Caldwell District), 
1907.— 
January 10th.—Song-Thrushes have returned to us after two 
months’ absence. 
13th.— Watched the Dipper to-day bathing itself as a Duck does, 
