Best suet feeders: cage and tail-prop designs for woodpeckers and clinging birds

The vinyl coating matters: bare galvanized wire accumulates grease, mold and mildew from suet fat. A vinyl-coated cage wipes clean with a damp cloth. Bare wire cages require more effort to clean and typically need replacement sooner as the wire corrodes.

Standard 11 oz suet cakes fit all retailers: C&S, Wild Birds Unlimited, Brome and Kaytee all make suet cakes in this size. If the feeder does not fit the standard size, you are locked into one brand.

The tail-prop panel on the bottom of the DT-4 is designed for larger woodpeckers: Hairy woodpeckers, Pileated woodpeckers and Northern Flickers brace their stiff tail feathers against a solid surface below the feeding surface. A feeder without this panel forces them to cling at an awkward angle that reduces their visit time and comfort.

Two cakes also attract multiple birds at once, which reduces competition and allows you to fill both sides with different suet flavors (nut, insect, berry) to observe which birds prefer which.

Starlings and other upright-feeding birds cannot hang upside down to reach suet on an inverted feeder. Woodpeckers and nuthatches, which naturally forage upside down on bark, adapt to the inverted feeder quickly. The design effectively excludes starlings and reduces access for other upright perchers.

The trade-off is that some woodpecker species (particularly large ones like Pileated and Northern Flicker) also prefer right-side up feeding. Test an upside-down feeder only if starlings are actively depleting your suet supply.

Suet freezes below approximately 15 degrees F and becomes too hard for most birds to peck through effectively. A heated suet feeder maintains the suet at just above freezing, keeping it accessible. Woodpeckers continue visiting suet feeders in severe winter cold if the suet remains accessible; a frozen cake that birds cannot penetrate gets abandoned.