34 
THE CONDOR 
Vol. XVI 
Center Street entrance. During the summer months old and young forage con 
spicuously over all open ground for grasshoppers and army worms. 
C.VLiFORNTA Purple Finch. Carpodaciis purpureus californicns. Common 
resident. Found foraging quietly during fall and winter in the upper reaches of 
the ravines among the hills. In spring and summer the species occurs among 
trees, especially pine and cypress, on many parts of the lower Campus, where dur- 
ing the months of April and May its loud song is notably in evidence. March 17, 
1911, the full song was first heard for that season ( J. G.). 
Californlv Linnet. Carpodacus mexicanus frontalis. Common resident, 
occurring up on the hills in fall and winter, and scattered over the lower Campus 
in the breeding season. Here they nest about the ivy-clad buildings. Ten pairs 
were estimated to be nesting around the old Chemistry building in 1911. 
American Ckossbii-L. Loxia curvirostra minor. Irregular winter visitant. 
On February 7, 1909, and for at least ten days previously, several small flocks 
were to be seen high about the tops of the evergreens around the Greek Theatre 
and near the Center Street entrance. 
Willow Goldfinch. Astragalinns tristis salicamans. Known to be regu- 
larlv resident in tbe San Francisco Bay region, but as far as the Campus is con- 
cerned reported during the summer only. Earliest record, April 26, 1913, and 
latest, October 12, 1912 (A. S. A.). Many are to be seen in July on the hillsides 
towards the head of Strawberry Creek canyon, feeding on thistle-heads in com- 
pany with linnets. 
Green-backed Goldfinch. Astragalinus psaltria hesperophilus. Common 
resident, occurring in flocks in patches of star-thistle on the hillsides in winter, 
and at other seasons scattered over the Campus generally, even along the city 
streets, in pairs or small companies. Often seen feeding fearlessly on dandelion 
heads on lawns. Xests are built frequently in garden trees, as also in live oaks. 
Occupied nests have been noted in May and July. Two nests containing young 
were oliserved the last week in iVugust, 1908 f J. G.). This bird bears the l)ook- 
name of “Arkansas” Goldfinch, as well as the above more appropriate one. 
Lawrence Goldfinch. Astragalinus lawrencei. Observed only as a sum- 
mer visitant. In June and July, 1909. several pairs were repeatedly seen among 
live-oaks up Strawberry Creek ( J. G.). 
Pine Siskin. Spinus pinus pinus. Common re.sident, often associating with 
the Green-backed Goldfinch. In winter the two species are to be met with in 
large mixed flocks on the hillsides. February 7, 1909, a dense flock of fully 100 
was forasfing on the bare ground near the crest of a ridge. Eveiy now and then 
they would '^dse in a cloud and attempt to fly across the ridge against the stiff 
westerly wind, hut, apparently failing, wouhi be swept back over the crest, to 
alight again on the ground. Often observed in spring and summer feeding on 
dandelion beads on lawns. A nest was discovered in a pine in June, and many 
yellow-suffused young on the wing were observed by August 4 ( ^ 9 ^^^ G.). 
This is another bird of ordinarily Boreal habitat, which finds the cool Berke- 
ley climate to its liking and thus helps to lend a northern complexion to our fauna. 
Engiish Spxrrovv. Passer domesticus. Abundant resident on the lower 
portion of the Campus. Flocks forage up onto the hills in late summer and fall. 
Not yet seen up Strawberry Creek beyond the swimming pool. _ Numbers nota- 
bly increasing during the jiast six years. Increase of this exotic interloper is coi- 
related significantlv with decrease in numbers of certa’u native birds. As yet 
nests are' located almost exclusively about the ivy-covered buildings. Breetls 
from April to August. 
