One of these was the loggerhead shrike. Birds include the Lesser Prairie Chicken, greater prairie chicken, dickcissel and loggerhead shrike. The oldest recorded age of a loggerhead shrike was 12 years and 6 months. The loggerhead shrike is a medium-sized passerine. Endangered species include the loggerhead shrike and spotted turtle. The preserve also protects habitat for the loggerhead shrike, a rare bird within Virginia. The San Clemente loggerhead shrike is a passerine bird of medium size. The loggerhead shrike is extremely abundant in the "low desert"/ chaparral environment. The loggerhead shrike ("Lanius ludovicianus") is a passerine bird in the family Laniidae. Loggerhead shrike populations have been decreasing in North America since the 1960s.