568 



PATAGONIAN EXPEDITIONS: ZOOLOGY. 



Tail, 8.2 inches. 

 Tarsus, 1.6 inches. 



The sexes do not differ appreciably in color, but the female averages 

 a little longer than the male. 



Fig. 283. 





■x^\ 



Ibycter megalopteriis. P. U. O. C. 7891. Natural size. 



Color. — Adult male. 



General color: Glossy black, with deep, dull green reflections above 

 and below, except on the rump and abdomen, which are pure white. 



Head : Crested with recurved feathers on the crown ; entirely glossy 

 black, green reflections. 



Neck: Glossy black like the head. 



Back : Interscapular region, back and rump, glossy black with a strong 

 tinge or reflection of deep green ; the upper tail-coverts immaculate white. 



Tail : Black ; white at the base and a broad tip of white on each feather. 



Wings : Primaries black, each quill tipped with white ; secondaries 

 black, shaded with deep brown and generally tipped with white ; scapulars 

 and upper wing-coverts black like the back ; under wing-coverts white, as 

 are some of the feathers at the bend of the wing ; axillaries white. 



