592 Mr. A. B. Percival on Birds 
Tvent up the liver in my dugout for a mile or so^ and saw 
the Owl fiy into seme thick cover on the bank of the river, so 
went ashore after it. I never saw another in the district. 
63. Circus macrurus (Gm.) ; Sharpe, Cat. B. Brit. 
Mus. i. p. Q7 (1874).^ 
a. $ ad. Ruo River, November 23^ 1898. 
A pair of these Owls were for some days about my camp 
on the Ruo, near the Zoa Falls. They were very fond of 
washing, and every day came to the same sandbank in the 
river to have their bath, sitting in the water for an hour or 
more. 
64. PoLYBORoiDES TYPicus Smith ; Shelley, Ibis, 1896, 
p. 229. 
These birds were not uncommon, haunting the river-banks 
and palm- groves. They worked the palm- groves very care- 
fully, flying from tree to tree, and examining all the leaves, 
more particularly those that were dead. They sometimes 
flew to a frcnd and hnrg down, alighting at the point, and 
half climbing, half flying up the frond, looking, I suppose, 
for small reptiles and shells. They were not easy to shoot, 
being very wary. 
65. AsTUR poLYzoNoiDEs (Smith) j Shelley, Ibis, 1897, 
p. 551. 
a. Ad. Chiromo, Ruo River, July 30, 1898. 
This pretty little Hawk was not uncommon around 
Chiromo in July, August, and the early part of September. 
Alter that time I did not see a single specimen. It is 
extremely tame and very easy to shoot, feeding mostly on 
insects and small birds. It is to be found in almost every 
palm-grove, and if disturbed only flies to the next tree, 
allowing one to walk right nnderneath before moving. 
QQ. AcciPiTER MiNULLUS (Daud.) j Shelley, Ibis, 1896, 
p. 177- 
A few of these pretty little HaAvks are to be seen on the 
banks of the Ruo, where the thick bush comes down to the 
water. They seldom venture far thence, and are very 
