SINGLE MOULT. 
PLATE VI. 
Fall. 
ADULT MALLARD DRAKE. Single Moult. 
Single moult takes place only on the wings, tail, tail coverts, part of vent and the big scapulars between the dates July 6th and October 1st. 
1 Tail feather about to faU July 6th. 2. Kew eclipse tail feather July 12th. 3, 4, 5. Showing gradual process of colour change in feather No. 2, taken 
from birds on August 12th, September 20th, and October 12th. 
6 7 8 9 Showing how the drake obtains his curly tail coverts by means of a single moult, which takes place July 6th. The long feathers come in (fig 6). 
' ' They then turn up and over, at the same time changing colour until complete (fig. 9). Drawn from feathers taken— 6, July 6th ; 7, August 15th 
8, September 20th ; 9, October 12th. 
