This information was found at: http://www.mbr.nbs.gov/id/framlst/i6220id.html

Loggerhead Shrike

Lanius ludovicianus

Identification Tips:

Heavy, hooked bill
Black mask
Gray head and back
White underparts
Black wings with white wing patches
Black tail with white outer tail feathers
Juveniles and immatures are duller with faint
barring above and below



Similar species:

The Northern Shrike is very similar to the Loggerhead
Shrike but is larger with a black mask that does not
extend across the top of the bill, a paler gray overall
color and faintly barred underparts. Immatures are
browner than immature Loggerheads. Northern
Mockingbirds have slimmer bills and lack a black mask.