[1] : The Collaborative International Dictionary of English v.0.48

ring-necked \ring"-necked`\, a. zool.
   having a well defined ring of color around the neck.
   1913 webster

   ring-necked duck zool., an american scaup duck aythya
      collaris. the head, neck, and breast of the adult male
      are black, and a narrow, but conspicuous, red ring
      encircles the neck. this ring is absent in the female.
      called also ring-neck, ring-necked blackhead,
      ringbill, tufted duck, and black jack.
      1913 webster
see also:
ring-necked duck aythya collaris ring-neck ring-necked blackhead ringbill tufted duck 
black jack 

[2] : The Collaborative International Dictionary of English v.0.48

tufted \tuft"ed\, a.
   1. adorned with a tuft; as, the tufted duck.
      1913 webster

   2. growing in tufts or clusters; tufty.
      1913 webster

            the tufted crowtoe, and pale jessamine. --milton.
      1913 webster

            tufted trees and springing corn.      --pope.
      1913 webster

   tufted duck zool., the ring-necked duck. local, u. s.
      1913 webster
see also:
tufted duck 

Tufted >> T Words
Tufted, definition of term: Tufted
tufted_pag1.html

Duck >> D Words
Duck, definition of term: Duck
duck_pag1.html

Duck Soup >> D Words
Duck Soup, definition of term: Duck Soup
duck+soup_pag1.html

Wood Duck >> W Words
Wood Duck, definition of term: Wood Duck
wood+duck_pag1.html

Steamer Duck >> S Words
Steamer Duck, definition of term: Steamer Duck
steamer+duck_pag1.html

Fen Duck >> F Words
Fen Duck, definition of term: Fen Duck
fen+duck_pag1.html

Dabbling Duck >> D Words
Dabbling Duck, definition of term: Dabbling Duck
dabbling+duck_pag1.html

Bombay Duck >> B Words
Bombay Duck, definition of term: Bombay Duck
bombay+duck_pag1.html

Lame Duck >> L Words
Lame Duck, definition of term: Lame Duck
lame+duck_pag1.html