22 



Locustella ochotensis (Midden.). 



A specimen of Middendorf's warbler was killed May 17 within ten 

 feet of our house at Balete. 



Acrocephalus orientalis (Temm. and Schl.). 

 One specimen killed April 27. 



Cisticola exilis (Vig. and Horsf.). 



A few seen in grass patches along the river. 



Megalurus ruficeps Tweed. 



A specimen of the smaller Megalurus from Balete. 



Acanthopneuste borealis (Bias.). 

 Rare. 



Artamus leucorynchus (Linn.). (Pis. XVI, XVII, XVIII.) 

 Artamus leucogaster Sharpe, Hand-list, IV, p. 260. 



This species was abundant near Balete, and during April was 

 busily engaged in nesting or in feeding young. Several nests, each 

 containing three young, were found during that month, indicating 

 that if the collector wishes to find eggs the search should begin in 

 March. Two nests which were examined, each contained four eggs ; 

 these are described below. The nest was always placed on the end 

 of a stub or on the butt of a fallen tree in the river bed. The 

 old birds are very pugnacious if their nest contains young, but if the 

 eggs are not hatched, they are less energetic in their efforts to drive 

 away the intruder. 



April 22, 4 fresh eggs, measurements : 0.97 by 0.70, 0.96 by 0.70, 

 0.94 by 0.70, and 0.90 by 0.70; nest of small rootlets and one 

 or two leaves compactly made and deeply cupped ; placed on the butt 

 of a partly burned and drifted tree in the river bed. 



April 30, four heavily incubated eggs; measurements: 0.91 by 

 0.70, 0.91 by 0.70, 0.89 by 0.79, and 0.90 by 0.70; nest on the top 

 of a stub five feet in height, in the river bed ; it was composed of 

 fine blackish-brown rootlets. 



The two nests just described were not surrounded by water, but 

 many of the others were placed on stubs or fallen trees in midstream 

 as is the case with the one about to be described, of which an 

 illustration is given (PI. XVI) . 



April 15, three small 3^oung; nest 20 inches above water, on slant- 

 ing stub; nest composed of weathered rootlets and a few straws, 

 giving it a dark gray color, exactly like that of the stub; inside 

 diameter, 3 by 4 inches; inside depth, 1.75 inches. 



