Wild South Florida — Loggerhead Shrike
 
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Loggerhead Shrike
Loggerhead Shrike
Loggerhead Shrike, photographed at John U. Lloyd State Park in Fort Lauderdale, March 2015.
Loggerhead Shrike
 

The loggerhead shrike, Lanius ludovicianus, looks like just another songbird. Intimidatig it ain't. That is until you get a close look at the curved beak and the idea pops into your brain that something else must going on with this bird.

And you'd be right. Despite its relatively diminutive size, the loggerhead shrike is a bird of prey as well as a songbird. Despite its lack of stature, it is able to carry prey as big as itself. It has a body length of about nine or 10 inches and wingspan of about a foot. It is a gray bird, with a black mask, black wings with a white patch and a black tail. Its beak is short, curved raptor-like at the tip but no raptor-like talons. It has extraordinary eyesight that enables it to spot a grasshopper at 70 yards.

The loggerhead is a year-round resident of South Florida as well as much of the southern and central United States. There are also migratory populations that spend the summer farther north into Canada and winter in parts of Texas and Mexico.

It lives in open places with a few trees or shrubs for perching, or in forests with open areas adjacent. It's particularly fond of trees and shrubs with thorns or spines, which serve two purposes, one obvious, the other not so much. It tends to perch on posts, signs, fences, barbed wire and in trees and shrubs, where it scans for a meal, which might be a bug, a bird, a reptile or a rodent. When it sees a tasty meal, it will swoop down, perhaps hover for a second and hit its target. Small prey will be eaten right away; larger items will be hauled off to a thorny tree or shrub, where the hapless victim is impaled and stored to be eaten at a later date. That habit allows loggerheads to eat prey, like monarch butterflies, that would be poisonous to other animals. Storing the meal allows volatile poisons to break down into harmless substances. Loggerheads are one of the few animals able to eat the otherwise toxic eastern lubber grasshopper. It eats the head and abdomen while tossing away the poisonous thorax.

 
 
Loggerhead Shrike
 

Vertebrate prey are attacked at the nape; loggerheads have sharp projections in their upper beak called tomial teeth that bore into the prey's spinal chord and paralyze it.

Loggerhead shrikes often nest in thorny bushes and trees for the protection that they afford. Both males and females select the site and gather material, with females doing the assembly. Females lay as many as a half-dozen egg; they also handle incubation duties, while males bring food. The eggs hatch in a little more than two weeks; both parents feed the brood, which stays nest-bound for about three weeks. Juveniles stay with their parents for three or four more weeks.

Loggerheads aren't considered imperiled globally but their numbers are dwindling. In the northeast, it's all but disappeared for reasons unknown. New York lists it as endangered. Loggerheads are members of Landiidae, the shrike family.

 

Photographs

by David Sedore

     
Loggerhead Shrike Loggerhead Shrike Loggerhead Shrike
 
Links for Loggerhead Shrike Cornell Laboratory of Ornithology National Audubon Society National Geographic Society
 
Unless otherwise stated, all photographs are property of the publishers and may not be used without their express permission.