RED-BREASTED MERGANSER. 
Immature Female. November. 2. Adult Female. December. 3. Adult Female. December. Very old bird. d. Immature Male. March 22nd. 
Age, a months. ^ge 8 months and 22 days. 
Adult Male ; passing into eclipse. July 6th. 6. Adult Male ; full eclipse. September. 7. Adult Male. December. 8. Adult Male. March. 
