Birds of Celebes: Sylviidae. 
525 
Young. The under-parts suffused with buff, the tips of the feathers on the throat wood-brown, 
creating a barred appearance; the breast also barred, but more uniform wood-brown; 
sides and flanks uniform yellow-brown (Salibabu, Talaut, 29. Oct. 1893: Nat. Ooll. 
— C 13134). 
Measurements. Wing c. 80— 85 nun; tail 68—72; tarsus 26—28; bill from nostril 10.5—12. 
Nest and eggs unknown. 
Distribution. East Siberia from Yeneseisk (Godlewski 16] and Irkutsk to the shores of the 
Sea, of Japan (Dybowslci and Godlewski 16]] Japan (Blakiston d 4, d 6, 15)] China 
(Swinhoe c 2, d 2, 12, David c 3, d 5); Philippines — Luzon (Othberg a 3, White- 
head 18), Maiinduque (Steere 13)] Talaixt — Salibabu and Karkellang (Nat. Ooll. 
17)] Great Sangi (Bruijn b 2, 11)] Morty (Wallace b 1, IV)] Halmahera (Wallace 
IV, Bruijn 5); Temate (Beccari 5, Eischer 7); Tidore (Bruijn 5); Kaioa (Wallace 
IV, 5)] Batchian (Wallace IV)] Amboina (Beccari 5). 
This Grasshopper -warbler is very imperfectly known. Its summer haunts 
are Siberia and, apparently, rather high latitudes there; in winter it has been 
found in the East Indies which are washed by, or are not far from, the Pacific, 
but not in the Great or Lesser Sunda Islands; the Pacific coast-line guiding, as 
it might seem, the birds in their migration. In this respect it corresponds with 
Muscicapa griseosticta. Swinhoe (d2) observes that the bird comes to Amoy 
in May in great numbers, and disappears again almost immediately ; Blakiston 
met with it at Hakodadi, but “it passes north to breed”. Its nest and eggs 
have not yet been discovered. Seebohm (15) says it “breeds near Lake Baikal 
and in the valley of the Amoor”, but does not tell us on what authority he 
makes this statement; Taczanowski (16) writes that Dybowski and 
Godlewski found it in these regions — the neighbourhood of Irkutsk, Dauria, 
Ussuriland and the coast of the Sea of .Japan — but eveiywhere very rare and 
apparently only on migration. Godlewski heard it, however, during his return- 
journey across the Government of Yeneseisk at the end of July. 
In the East Indies all the specimens we have seen recorded in which the 
date of acquisition is noted (14) were killed between September and the end 
of May. There are two adults and one young one from Talaut in the Dresden 
Aluseum, a fourth is at Tring, all killed in October and November. 
The genus Locmtella is distinguishable from Acrocephalm by its strongly 
graduated tail, the outside feather being less than three-quarters of the length of 
the longest. Seebohm has pointed out that the present species like some other 
Locustellae in its first plumage is strongly tinged with yellow, and that the form 
described by Mr. Wallace as insularis is the adult of the yellower bird described 
by G. R. Gray two years earlier as Acrocephalus fasdolatus. Its habits aie 
described by Godlewski in W. Taczanowski’ s “Eaune Ornithologique de la 
Siberie Orientale” (16). 
Locustella ochotemis (Midd.) may be distinguished from the present species 
by its smaller size and the dark centres to the feathers of the upper surface ; 
the northern range of the two species is somewhat similar, and both are now 
known from the Celebes area. 
