THE BIRD BOOK 
Loggerhead Shrike 
622a. White- humped Shrike. Lanius lud- 
ovicianus excubitorides. 
Range. — North America, west of the Plains, 
breeding north to Manitoba and the Saskatch- 
ewan; winters south to Mexico. 
Like the last but paler and the rump white. 
Their nesting habits and eggs are in every re- 
spect like those of the Loggerhead Shrike. 
622b. California Shrike. 
Lanius ludovicianus gambeli. 
Range. — Pacific coast north to British Colum- 
bia. 
Similar to the eastern form but with the 
breast washed with brownish and with indis- 
tinct wavy bars. The eggs cannot be distin- 
guished from those of the others. 
622c. Island Shrike. Lanius ludovicianus anthonyi. 
Range. — Santa Barbara Islands, California. Like the last but smaller and 
darker. Eggs not distinguishable. 
VIREOS. Family VIREONDIME 
Vireosylva calidris 
6 23. Black-whiskered Vireo. 
barbatula. 
Range. — A Central American species, breeding in Cuba, 
Bahamas and southern Florida. 
Like the Red-eyed Vireo but with a 
V dusky streak on either side of the chin. 
They build pensile nests of strips of bark 
and fibres, swung from the forks of 
branches. The eggs cannot be distin- 
guished from those of the next species, 
White being white, more or less specked about 
the large end with reddish brown and umber. Size .78 x .55. 
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fi22a — 622b 
