Anas carolinonsis . 
| Cambridge 
1897. 
Dec.11. 
1899. 
iDecember. 
, Mass. 
The Ducks (seen this morning on Fresh Pond among a large 
flock of Gulls) were scarcely less interesting for although 
there were only eight of them they represented no less than 
three different species; viz. Anas obscura . A. boschas , and A. 
( Nett ion ) carolinensis . 
The Teal were a pair or, at least, male and female. The 
drake was immature lacking the lunar markings on the sides of 
the breast and having the chestnut of the head somewhat ob¬ 
scured by grayish mottling but with the creamy buff patch on 
the under tail coverts fully developed. For the first half- 
hour these birds kept apart from the other water-fowl swimming 
rapidly to and fro as if nervous or apprehensive and frequent¬ 
ly raising their bodies out of water and flapping their wings 
after the manner of most Duck;, they finally approached and 
joined the Black Duck and Mallard. 
One in Fresh Pond on the 13th. It was a young male 
changing into the full plumage, the head and neck being 
strongly tinged with reddish and the tail markings nearly 
completed although the body plumage was colored like that of 
the female. It kept close company with a number of Black 
Ducks. 
