. 
90 University of California Publications in Zoology. \Vou.5 
and gooseberry twigs, in this respect something like a tanage1’s. 
But the internal cup is much better formed and deeper. It con- 
sists of fine yellow and brownish rootlets and grass stems, with 
an intermixture of finely slivered plant fibers, probably bark 
from small stems. The inside diameter of the cup is 2.30 inches, 
the depth 1.10. 
The eges are quite distinctive in size, color, and markings, 
not for a moment to be confused with those of the California 
purple finch, or the linnet. The ground color is a far deeper 
blue, and the markings more numerous. One of the sets may be 
described as follows: The ground color is Nile blue, of the exact 
tint of No. 23, Plate IX, of Ridgway’s Nomenclature of Colors. 
The markings are condensed into a broadish ring about the larger 
end, the small end being almost immaculate. The markings con- 
sist of spots and blotches of pale lavender with a few bold pune- 
tuations of bistre. In another set the surface markings are in 
the nature of minute lines and dots. The three sets measure in 
inches as follows: .74.60, .72.61, .75.60, .73><.61; .85<.60, 
82.60, 83.60, 88.61; .79X.63, .78X.62, .77.62, .80X<.62. 
Thirty-one skins of this species were taken. 
Carpodacus mexicanus frontalis (Say). Linnet or House Finch. 
This species was to be found with fair certainty during the 
breeding season in the Upper and Lower Sonoran zones; later its 
wanderings led it up through Transition. It was noted on the 
lower Santa Ana, where a nest was located in a crevice of the 
canon wall near the Narrows, June 11, 1905. Linnets were com- 
mon around Seven Oaks, on the upper Santa Ana at 5000 feet 
altitude. This is just at the border between Sonoran and Trans- 
ition. A nest with eggs was found here June 24, 1906, built on 
the projecting end of a log over the front door of the biggest 
eabin. Linnets were not seen along the Santa Ana above Seven 
Oaks until well along in July, when a regular wave of adults 
and young in small companies advanced up at least as far as 
Big Meadows, 6700 feet altitude. A few were seen in Bear valley 
August 2, 1905. On the desert slope of the mountains the species 
proved common in August, 1905, at Cushenbury springs, 4000 
feet, where old nests were seen in tree yueceas; at Cactus Flat, 
