236 Grinnell, Ne-w California Birds. \ji% 



Helminthophila celata sordida. Lutescent Warbler. — Tolerably 

 common but very quiet and secretive. Nearly all the specimens secured 

 had been eating the cactus fruits and their digestive organs and surround- 

 ing tissues were colored a bright wine-color. A partial albino specimen 

 Avas taken. 



Dendroica auduboni. Audubon's Warbler. — Probably the most 

 numerous bird on the island and seen everywhere from the pebbly 

 beaches to the highest hills. 



Mimus polyglottos. Mockingbird. — Common among the cactus 

 patches from the canon-beds to the hill-tops. Their faces were in many 

 cases brightly stained with the cactus fruit juice. 



Salpinctes obsoletus. Rock Wren. — Tolerably common on the cliffs 

 and steep hill-sides. 



Thryothorus bewickii spilurus. Vigors's Wren. — Tolerably com- 

 mon in the smaller ravines, but very shy. The 10 specimens secured 

 agree in having the bill quite perceptibly longer than the mainland bird. 



Regulus calendula. Ruby-crowned Kinglet. — A very few were 

 observed. 



Turdus aonalaschkae. Dwarf Hermit Thrush. — Tolerably common 

 on the shady hill-sides, and in the deeper canons. They were feeding on 

 the berries of the California holly. 



GEOGRAPHICAL RACES OF HARPORHYNCHUS 

 REDIVIVUS. 



BY JOSEPH GRINNELL. 



Comparison of a series of Thrashers from northern and cen- 

 tral California with one from southern California, as might be 

 expected, discloses two slightly differentiated geographical races. 

 This is another instance of the effect of the moist northerly 

 Pacific coast climate in producing a soft brown coloration, as 

 -contrasted with the leaden or ashy shades acquired by birds 

 inhabiting the southern coast region where the rainfall is much 

 less. As the type specimens of this species were obtained in the 

 vicinity of Monterey, the name redivivus proper may be restricted 

 to the northern race, while the southern form, which I believe to 

 be sufficiently distinct, will require a ne\v name. 



