Gray-backed Fiscal
Lanius excubitoroides
Observed on a Kipkenyo farm southwest of Eldoret, Nairobi, Kenya. December 2012.
Slightly larger and more powerful looking than the common fiscal. The gray cap and back are very distinctive. These are predacious passerines are capable of taking small reptiles and rodents as well as big grasshoppers and other insects.
Laniidae -- Shrike Family
Books:
- Birds of Kenya and Northern Tanzania by Zimmerman et al.
- Birds of East Africa by Stevenson and Fanshawe