CABANIS' TIGER BITTERN 



Not common in the Canal Zone, though 

 numerous on some parts of the coast and islands 

 of Panama Bay. Adults are easily recognized 

 by the black and white striped appearance .of 

 the head. It is similar in habits to N. nycticorax 

 ncevius but perhaps less 'nocturnal. The young 

 of this species differs in lacking the rufescent 

 tinge to the wing quills. 



10. Tigrisoma cabanisi Heine 

 Cabanis' Tiger Bittern 



Length about 850 mm. (33.50 in.). Forehead 

 and crown black; sides of head gray, bordered 

 below by a black line; neck black barred with 

 buff, a white stripe down its side; remainder 

 of plumage above black, finely barred with buff 

 (the feathers with black shafts); outer wing 

 quills bluish gray tipped with white, a line of 

 white down outside edge of wings; under parts 

 gray broadly barred with chestnut. Bill dark 

 above, light below; legs and feet dark. 



Young. Conspicuously barred above and 

 below, the back and wings grayish brown 

 barred with tawny buff, the tail blackish brown 

 with narrow bars of white ; head and neck barred 

 with buff and dusky, the head tinged with chest- 

 nut; remaining under parts buffy white barred 

 with dark brown. 



Fairly common on the Pearl Islands where it 

 may be often seen on the rocks along the shore, 

 but apparently rare in the Canal Zone. 

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