258 JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Vol. XXIII. 



Dhunsirimukh, south bank of Bramapootra, 14-3-11* again on 8-4-11* a 

 few pairs still in evidence. A few pairs possibly remain to nest in the 

 plains, but the great majority, no doubt, return to the hills. Their haunts 

 in the rains if some odd birds do remain are almost inaccessible and in any 

 case would require the expenditure of much trouble and inconvenience tt) 

 satisfy oneself beyond doubt on this score, though some eggs in my posses- 

 sion are either this or the former chat but most probable S. leucura, anil 

 were taken at Hessamara. 



164. Oveicolajerdoni, Blyth [614]. — Jerdon's Bush-Chat. 



Resident as a nesting species in North Lakhimpur, occurs throughout the 

 plains in the cold season. Nagaghoolie, December ; Rnngagora, December, 

 March, 8-4-03, J • Confined to reed and grass lands adjacent to the rivers. 



165. Oreicola ferrea ferrea (G-ray) [615]. 



Distributed throughout the plains in the cold season when it is often 

 gregarious to the number of a dozen or thereabouts. Partial to the 

 outskirts of forest. Margherita, November, December, January, February ; 

 Rungagora, March ; Nagaghoolie, December ; Chota Tingrai, February ; Beni, 

 Abor-Miri hills, February ; Dejoo, November, December, March. 



166. Enicurus maculatus r/uttatus, Gould. [631]. — The Eastern Spotted 



Forktail. 



Renicurua guttatus, Gates, F. B. I., Vol. ii., p. 84. 

 Occurs on the north side of the watershed only in the hills on the North 

 Frontier, specimens secured in February. Kotur stream, Beni, Abor-Miri 

 country. 



167. Enicurus schistaceus, Hodgs. [632]. — The Slaty-Backed Forktail 



Henicurus schistaceus, Gates, F. B. I., Vol. ii., p. 84, 

 Gccurs on the north and south side of the watershed in the hills on the 

 North Frontier, it does not extend into the plains, but is found on both 

 sides of the valley and probably has a continuous range around the hills 

 at the head of the valley. Panchnoi, R. Dejoo, R. Joyhing, R. Kotchin 

 stream, Beni, Abor-Miri country; Margherita. 



168. Enicurus imviaculatus, Hodgs. [633]. — The Black-backed Forktail. 



Henicurus immaculatus, Gates, F. B. I., Vol. ii., page 85. 

 Found throughout the plains. Gccurs in jungle streams and the lower 

 reaches of stony beds of the hill rivers. The only Forktail confined to the 

 level area. Dejoo R., Joyhing R., Rungagora, Panitola, Margherita. 



169. Enicurus leschenaulti indicus, Hart. [634]. 



Henicurus leschenaulti. Gates, F. B. I., Vol. ii., p. 86. 

 Distributed in the hill streams and rivers around the head of the valley, 

 extends some miles distant into the plains during the cold season in North 

 Lakhimpur. This sprightly Forktail occasionally favours the vicinity of a 

 bungalow in the dry cold weather months, on one such occasion noted 

 26-9-11, at Silonibari. 



170. Microcichla scouleri (Vig.) [637].— The Little Forktail. 



Confined to the hill rivers around the head of the valley, odd birds may 

 be met with on the farthest "gagris" rapids of the North Lakhimpur rivers, 

 as this Forktail is never found away from such haunts : the termination of 

 the fast flowing water is invariably the extreme limit of its range. The 

 following records constitute the sum total of occurrences : — 



Runganuddie Gorge, 8-11-05, S 6 ; Dejoo, R. Gorge, 11-12-04, $: 

 Runganuddie, Dekajuli, 5-3-10*; Joyhing R., 3-1-05 $; Subansiri Gorge, 

 Sifoo Mukh, 2-2-06, $ $ ; Subansiri Gorge : Ganditola, 26-1-06, $ . 



171. Chaimarrornis leucocephala (Vig.) [638]. — The White-capped Red- 



start. 



