RAZOR-BILL. 
53 
young birds of this kind become also, while still upon 
the rocks, the prey of eagles and hawks. 
The Razor-bill measures seventeen inches in length, its 
beak from the forehead one inch and a half; the tarsus 
one inch and a quarter; the wing from the carpus to 
the tip, seven inches and a half. 
The plumage of the adult male and female are alike; 
the head, neck, back, wings, and tail are black; the tips 
of the secondary quill-feathers are white, and all the 
under parts pure white; the beak is black, with three 
transverse grooves, and one white streak on the upper 
mandible; the lower mandible has two transverse grooves 
and one white line. From the top of the upper mandible 
runs a perfect white streak to each eye; the eyes are 
burnt umber brown; the legs, feet, and webs are sooty 
black. 
Young birds of the year have their beaks smooth, with¬ 
out grooves or white lines, and the streaks from the beak 
to the eyes are intermixed with black; the chin, cheeks, 
sides, and front of the neck are white; the rest of the 
plumage as in the adult. 
The egg figured 284 is that of the Razor-bill. 
