BLUE GOOSE. 



Chen ccerulescens (Linn.). 



In the adult the head and upper part of the neck are 

 white ; the rest of the neck, breast, back and rump blu- 

 ish, or brownish-blue, many of the feathers with paler 

 edges; wing light bluish gray; secondaries blackish, 

 edged with white; primaries black, fading to gray at 

 the base; tail brown, white margined; under parts 

 brownish gray and white, sometimes mostly white, and 

 upper and under tail coverts white, or nearly so. The 

 bill is pale pink, with white nail and a black line along 

 the margin of each mandible. The legs and feet are 

 pink or reddish. 



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