Why are suet feeders good for woodpeckers?

 

Photos by BarrytheBirder

Many sources say suet feeders are great for woodpeckers because of the high-fat content (especially in winter) providing crucial energy, mimicking insects they'd find in trees.   Specially designed feeders often match the suet-feeder's natural clinging style, offering security and easy access to the calories-rich food source, unlike loose seeds. 

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BarrytheBirder