RAZOR-BILLED AUK. 



TINKER. 

 Alca TORDA. 



Char. Upper parts black, with green reflections ; throat deep brown ; 

 a line of white in front of the eyes ; a narrow bar of white on the wings ; 

 under parts white ; bill horn-brown with a bar of white. Length abont 

 17 inches. 



In winter the throat becomes white, the- bill loses the horny shield at 

 the tip and the white bar, and a[)pcars smaller and sharper, and the line 

 from the eyes is indistinct. 



A'est. On an ocean cliff, — usually near the summit; the egg is laid on 

 the bare rock, generally in a crevice or amid loose stones. 



-^vs""- ' ; ground color shaded from ivory white or pale buff to dark 

 buff or reddish brown ; marked with dark brown and gray ; size variable, 

 average about 2.90 X 1.80. 



The Razor-bill is another of those gregarious marine birds 

 which dwell amidst the wildest scenes of Nature, and penetrate 



