Smithsonian Report, 1949.—Ernest P. Walker PLATE 15 
1. MALE BLACK AUSTRALIAN SWAN (CHENOPIS ATRATA) 
The bird is attacking a man in defense of the half-grown young in the foreground. 
The female was just to the left outside the picture. 
A AT UI A aii 
Lh PAAR RRO SIE iirc roe, ment 
es : «ee ae 1 wer ee : 7 Fe eo ; 
BEN he \ gn Js ol eee ion Sena F soe ease ee Be ae | 
2. MALAYAN PORCUPINES (ACANTHION BRACHYURUM) 
The two animals alternate head to tail, in which position they regularly sleep. 
