Birds of Celebes: Sylviidae. 525 



Young. The uncler-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 (SaUbabu, Talaut, 29. Oct. 1S93: Nat. Coll. 

 — C 13134). 



Measurements. Wing c. 80 — 85 nun; tail 68—72; tarsus 2tj — 28; bill from nostril 10.5 — 12. 



Nest and eggs unkno-\\Ti. 



Distribution. East Siberia from Yeneseisk (Grodlewski 16) and L-kutsk to the shores of the 

 Sea of Japan (Dybowski and Grodlewski 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), Marindu(iue (Steere 13); Talaut — Salibabu and Karkellang (Nat. Coll. 

 17); Great Sangi (Bruijn b 2, 11); Morty (AVallace b 1, IV); Halmahera (Wallace 

 IV, Bruijn 5); Ternate (Beccari 5, Fischer 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 

 Musdcapa griseosticta. Swinhoe (d 2) 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 everywhere 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 

 Museum, a fourth is at Tring, all killed in October and November. 



The genus Locustella is distinguishable from Acrocephalus 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 fasciolatus. Its habits are 

 described by Godlewski in W. Taczanowski's "Faune Ornithologique de la 

 Siberie Orientale" (16). 



Locustella ochotensis (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. 



