PLATE IV. 
MALLARD. Breasts. 
Ciiangg of fhe adult male from Spring into eclipse plumage, and again from the eclipse into Winter dress. Same birds as on opposite page. 
I. Full Spring dress, July 1st. 2. Dralte in rapid mouH from Spring to 3. Sliowiug the last of the Spring dress, 4. Iq full eclipse except the wings, which 5. Full eclipse showins new wing 
eclipse, July 6th. In this specimen wings not yet moulted, July 8th. have not yet moulted. August 1st. feathers. August lOth. 
the wings are also in full moult and 
the bird unable to fly. 
6,7,8,9. Full eclipse, dresses of various types. August, 10. Colour change and moult commencing. September 10th. 
