56 
THE CONDOR 
1 Vol. IV 
been there for a long time. They were 
built of grass on a foundation of guano, 
and often over a foot high. The re- 
mains of fish were scattered about in 
all directions. Baird cormorant {Phala- 
crocorax p. resplendens) was also found 
breeding along the more inaccessible 
places in the face of the cliff. Its 
smaller size and the white flank 
patches easily served as a distinguish- 
ing mark. The third variety was the 
tail petrel {^Oceanodroma furcata) com- 
paratively common. We sometimes 
found the two species breeding in the 
same burrows; the latter were more in- 
clined to live in small colonies and 
where one or . two nests were found 
others were generally found near by. 
This petrel is larger than the Leach 
petrel and easily distinguished b}'’ its 
light slatish-gray plumage. Some of 
these birds were found with fresh eggs, 
PHOTO BY BOHLMAN 
TUFTED PUFFIN AND NEST. 
double-crested cormorant {Phalacro- 
corax dilop/ius)-, they were found on 
both the rocks we visited and were 
even more numerous than Baird cor- 
morant. 
In the burrows we found a great 
many tufted puffins {Lmida cirrhata) 
and Leach petrels {Oceayiodroma leucor- 
hoa). We managed to secure a good pic- 
ture of an adult female of the former 
species on her nest, by carefully un- 
covering her burrow. Besides the 
Leach petrel we found the forked- 
others with young. Sometimes the 
males were incubating and sometimes 
the females. 
The California murre ( Uria troile cali- 
fornica) and the western gull (^Larus occi- 
denta/is') were both very common about 
the rocks. The murres occupied every 
available place. The two peaks of the 
second rock we climbed were occupied 
entirely by two great murre rookeries. 
A good picture was secured of a colony 
of murres looking down from the top of 
Shag Rock. The gulls were floating 
