Color of under surface of body 
Color of under tail coverts 
Juvenal plumage 
Cape San Lucas 
(A. hypoleuca) 
Pale Neropalin 
blue 
Light drab, suffused 
with bluish 
White, light suf- 
fusion of gray 
Variable features in Aphelocoma californica and A. hypoleuca listed to show differences occurring in the several faunal areas occupied. 
Northern Lower 
California 
(A, ce. californica) 
San Diegan region 
(A. ¢. californica) 
Santa Cruz region 
(A. c. californica) 
San Francisco 
Bay region 
(A. c. oocleptica) 
Coast region north of 
the Golden Gate 
(A. ¢. oocleptica) 
Sacramento Valley 
(A. ¢. immanis) 
Sierra Nevada 
(A. ¢. immanis) 
Warner Mountains 
(A. ¢. immanis) 
Oregon 
(A. c. immanis) 
Smaller Smaller Smaller Larger Larger Larger 
120.4 118.8 119.8 126. 125.4 126.4 
134.4 132.5 131.6 140. 136.7 137.7 
8.3 9.1 9.5 9.1 9.7 
Dark (deep cadet 
blue) 
Dark (deep cadet 
blue) 
Dark (deep cadet 
blue) 
Dark (deep cadet 
blue) 
Dark (deep cadet 
blue) 
Sepia 
Slaty 
White, frequently 
tinged with blue 
Sepia 
Sepia 
Sepia 
Sepia 
Chapman’s blue 
Drab 
Slaty 
Slaty 
Slaty 
Whitish with slaty 
suffusion 
Chapman’s blue 
Drab 
Chapman’s blue 
Drab 
White, light suf- 
fusion of gray 
White, frequently 
tinged with blue 
White, frequently 
tinged with blue 
White, frequently 
tinged with blue 
White 
Dark 
Dark 
Dark 
Dark 
White, light suf- 
fusion of gray 
White, light suf- 
fusion of gray 
Chapman’s blue 
Drab 
White, light suf- 
fusion of gray 
White 
Pale 
