AND SOME OTHER RARE EUROPEAN WARBLERS. 
287 
It would appear as if Heligoland were a stage on the way to 
Western Europe for these Asiatic Warblers, as all those which 
have occurred here have previously on more than one occasion 
been obtained on Heligoland, therefore we may probably look to 
obtain sooner or later such other Eastern Warblers as have been 
recorded from that island, and have not yet, so far as wo know, 
visited the British Islands. These are : — 
1. Phylloscopus Iristis, Blyth, the Siberian Chiffchatr, which 
was once obtained on Heligoland in October, 184G, and which 
inhabits North East European Russia and Siberia, and winters in 
India, ranging as far east as Thibet. Messrs. Scebohm and 
Ilarvio-Brown found it breeding on the Petchora River, and 
the former gentleman also found it nesting in some numbers on 
the Yenesei. 
2. Phylloscopus borealis, Blasius, Eversmanns Warbler, which 
has been shot once on Heligoland on the Gth October, 1854, and 
Mr. Giitke says that another was seen there on the 1st June, 1859. 
It inhabits Northern Russia and Northern Norway, ranging right 
across Siberia to Alaska, and in winter is found in India and China 
and as far south as the islands of the Malay Archipelago. It has been 
found breeding on the Yaranger and Porsanger fjords in Norway. 
3. Phylloscopus nitidus, Blyth, the Bright-green Willow 
Warbler, has been only once obtained on Heligoland, on the 
1 1 th October, 18G7. It inhabits the Caucasus, where Mr. Lorenz 
found it breeding, tlie Transcaspian district and the Himalayas, 
where it, in all probability, breeds at high altitudes, and in 
Kashmir, and in winter is found throughout India down to Ceylon. 
4. Acrocephalus agvicolus, Jerdon, Paddy held Warbler. Has 
once occurred on Heligoland, on the 12th June, 1864. It inhabits 
during the breeding season the Southern and Central Ural, the 
Altai, Eastern and Western Turkestan, Transcaspia, the Himalayas 
from Kashmir to Nepal, and winters on the plains of India. 
When I wrote the article on this species in the ‘ Birds of Europe,’ 
nothing definite was known respecting its nidihcation. Since 
then, however, the nest and eggs have been sent from the Kirghis 
steppes in Southern Russia, and are described by Mr. Pleske 
(Orn. Ross. p. 558). The nest, he says, was woven or fastened to 
six slender aquatic stems, and is constructed entirely of plant 
strips, chiefly dark brown in colour, and measures, outer diameter 
