404 Mr. H. Dnrnford on North-Frisian Ornithology. 
Eiders diving off the coast of Sylt, and they stayed under 
water for many seconds. These birds, as well as Sheldrakes, 
always cover their eggs with down before leaving the nest. 
Of the birds included by Rafn in the paper before men¬ 
tioned, the following were not seen by us :— 
Muscicapa grisola. 
Erithacus phoenicurus. 
Erithacus titys. 
Calamoherpe arundinacea. 
Alauda crist at a. 
Fringilla ccelebs. 
Pyrgita montana. 
Strepsilas collaris. 
Tringa minuta. 
Larus glaucus. 
Anser cinereus. 
The last two, as the editor of f Naumannia' ? noticed at 
the time, are manifestly introduced in error; the rest are 
stated by Rafn to have been but scarce. He also includes 
Anthus campestris in his list; his words are, “ einzelne Paar 
briiten.” I believe we observed this species ; but as I could 
not satisfactorily identify it, I have thought it better to omit 
it from my list of species and mention it here. The facts are 
as follows :—On Sudfall, and again on the north end of Sylt, 
we noticed Pipits which, from their appearance, could, I think, 
only be referable to Anthus campestris ; they were pretty 
common on the first-named island, rare on Sylt. Near List, 
on Sylt, we took a nest with three eggs amongst the coarse 
grass on the dunes, about two hundred yards above high-water 
mark, on the east coast of the island; it was formed of dry 
grass, the finer fibres towards the interior, and lined with a 
few coarse hairs; the owners, however, were not satisfactorily 
identified. I am sorry I cannot speak decidedly about this 
species; but being unable to shoot on land, we could not secure 
any examples, and, not being very well acquainted with the 
species of this difficult genus, I am unable to say more. Rafn 
does not mention Anthus pratensis. It is quite possible that 
his Calamoherpe arundinacea may have been Emberiza schce- 
niclus : he says, “ nistet im Rohr bei Keitum ; ich bekam sein 
Nest mit zwei Eiern und einem Kukuksei.” We observed 
Emberiza schceniclus about six miles north of Keitum amongst 
reeds and bushes surrounding a Yogelkoje/ 5 Some of the 
