LITTLE BLACK-HEAD. 



'Aythya aMnis (Eyt.). 



Exactly similar in color to the broad-bill, but smaller. 

 The gloss on the neck is likely to be bluish or purplish, 

 instead of greenish. The length of this species is 

 about 1 6 inches, as against 1 8 or 20 in the preceding. 



These two species were long regarded as the same, 

 and, indeed, as yet there seems to be no definite char- 

 acter to separate them, except that of size. On the 

 New England coast, during the migrations, the two 

 are often found associated together, and this is true to 

 a less extent further to the southward. At the same 

 time the difference between them is well recognized by 

 ornithologists and by gunners generally, and is ex- 

 pressed in the common names applied to this species, 



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