274 



Hill, Field Notes on Birds of Kimberley, N.-W. Aust. [2,^^")" 



Measurements of birds in mm. 



Gerygone cinerascens (Grey Fly-eater) 

 Very uncommon. 

 Measurements of birds in mm. : — 



Total length 

 S ... 109 



c? ... no 



c^ ... 114 



(^ ... no 



? ... 104 



PSEUDOGERYGONE L^EVIGASTER (Buff-breasted Fly-eater). 



I noticed some of these little birds in the mangroves from Gibson Point to 

 Napier Broome Bay, where a few nests were found, placed at the extremity 

 of slender branches overhanging water. Two of these nests were built with 

 the openings about 12 inches from large nesting colonies of wasps {Po/tsfes, 

 sp.) A close examination of these nests convinced me that such sites were 

 chosen, after sound reasoning, as a protection against intruders ; at any 

 rate, one is impressed by the activity of these pugnacious little insects in the 

 interests of their own and their neighbours' nests. The similar habit of the 

 Black-throated Fly-eater (F. persomxta) in building near wasps' nests, on the 

 authority of Mr. D. Le Souef, is recorded in Campbell's " Nests and Eggs," 

 p. 162. 



Measurements of birds in mm. : — 



I mm. 



PSEUDOGERYGONE CHLORONOTA (Green-backed Fly-eater). 



A single specimen only was secured, at Parry Harbour, on 16/11/09. 

 Measurements of bird in mm. : — 



Total length Wing. Tarsus. Bill. 



96 ... 51 ... 16 ... 10 



PCECILODRYAS CERVINIVENTRIS (Bufif-sided Robin). 



An uncommon species, which was seen only in moist and densely timbered 

 country near Napier Broome Bay and Drysdale River. The nesting season 

 appears to be from October to the end of December. Green nest-building 

 tree-ants were the only insects found in the crops. Descriptions of nests : — 



{a) Built of rootlets, with a few pieces of bark attached to the outside ; 

 not lined; 35 feet from the ground. Contained two eggs (18/10/09). 

 Dimensions of nest in inches :— Outside — length, 3 ; breadth, 2. 5 ; depth, 1.7. 

 Inside— length, 2.1 ; breadth, 1.9 ; depth, 1.3. 



{b) Built of twigs, lined with rootlets ; a few pieces of cajaput bark 

 loosely attached to the outside ; about 20 feet from the ground (30/10/09). 



