THE BIRD BOOK 
30a. California Murre. Uria iroille calif ornica. 
Range. — Pacific Coast, breeding from the Farallones north to Alaska. 
This Pacific form of the common Murre is the most abundant breeding bird 
on the Farallones. Their eggs are used in enormous numbers for commercial 
purposes and these islands being located, as they are, within easy distance 
from San Francisco, thousands of dozens of the eggs are sold yearly, chiefly 
to bakeries. Although continually robbed, their numbers have not as yet 
diminished to any great extent. They lay but a single egg on the bare ledge. 
Individual eggs are indistinguishable from the last species but in a large 
series the ground color averages brighter. They show the same great dif- 
ference in color and markings. The first set is laid in May, but owing to 
their being so often molested, fresh eggs can be found during August. Data. — 
Farallones, July 4, 1895. Single egg laid on bare cliff. Collector, Thos. E. 
Slevin. 
31. Brunnich Murre. Uria lomvia lomvia. 
Range. — North Atlantic Coast, breeding range the same as the common 
Murre. 
Varies from white to greenish blue 
This species differs from the common Murre in having a shorter and thicker 
bill, the base of the cutting edge of which is less feathered. They breed on 
the same islands in company with the common Murre and their eggs are indis- 
tinguishable. Data. — Coast of South Labrador. Single egg laid on ledge of 
cliff. About three hundred birds in the colony. 
30 
