IVORY-BILLED AVOODPECKER. 347 



the back seems white, although it is in reality black. Lateral tail-fea- 

 thers with a spot of white near the tip of each web. 



I<ength 21 inches, extent of Avings 30 ; bill along the back 2^, along 

 the gap 3 ; tarsus 2. 



Adult Female. Plate LXVI. Fig. 2, 3. 



The female resembles the male in colouring, but wants the vivid 

 patch on the crest, which is wholly black. 



