Quick Answer: The best American kestrel nest box in 2026 is the Coveside Kestrel & Screech Owl House — solid pine built to the 3-inch entrance hole kestrels need, with an interior perch and a 10-30 foot mounting range, for $79.99 direct from Coveside. The Woodlink Screech Owl & Kestrel House matches the same 3-inch spec in kiln-dried cedar at a comparable price, and the JCS Wildlife Cedar Nest Box with poly-lumber roof ($88.96) swaps in a weatherproof roof that never needs resealing. Mount whichever box you pick 10-20 feet up on a smooth metal pole facing east or southeast, over open field or pasture edge where a kestrel can hunt by sight.
America’s smallest falcon has lost ground fast. The North American Breeding Bird Survey shows American Kestrel numbers falling roughly 53% between 1966 and 2019 — a cumulative decline Cornell Lab’s All About Birds calls one of the steepest of any widespread North American raptor — even though Partners in Flight still estimates a relatively healthy 9.2 million-bird global breeding population. The drivers aren’t a mystery: “clean farming” practices that remove hedgerows, brush, and standing dead trees have stripped away the natural cavities kestrels nest in, on top of shrinking insect and rodent prey and pesticide exposure that can reduce clutch sizes. A nest box can’t fix the prey-base problem, but it directly replaces the dead-tree cavities that clean farming keeps removing — which is exactly why kestrel nest-box trails have become one of the most common raptor-conservation projects run by state wildlife agencies and Cornell’s NestWatch program. Here’s what to buy and how to set it up.
Kestrel boxes by the numbers
- A 3-inch entrance hole. Nearly double the 1.5-inch hole used for bluebirds and swallows on this site, sized for a falcon rather than a songbird — some builders use a 3x4-inch vertical oval instead for extra room.
- 10 to 30 feet of mounting height. Coveside’s own spec sheet puts the practical range at 10-30 feet on a smooth metal pole; most backyard installs land at the 10-20 foot end of that range.
- A 53% population decline since 1966. The North American Breeding Bird Survey’s long-term data shows this cumulative drop through 2019 — one of the steeper declines among widespread North American raptors, according to Cornell Lab’s All About Birds.
- 9.2 million birds. Partners in Flight’s current global breeding population estimate, which is why the species still rates a moderate 10 out of 20 on the Continental Concern Score despite the steep multi-decade decline.
Our top picks at a glance
| House | Best for | Material | Entrance hole | Price |
|---|---|---|---|---|
| Coveside Kestrel & Screech Owl House | Best overall | Pine | 3" round | $79.99 |
| Woodlink Screech Owl & Kestrel House | Best cedar alternative | Kiln-dried cedar | 3" round | around $75-$90 |
| JCS Wildlife Cedar Nest Box with Poly-Lumber Roof | Best weatherproof roof | Cedar + recycled poly roof | 3" round (screech owl/kestrel spec) | $88.96 |
1. Coveside Kestrel & Screech Owl House — Best Overall
Coveside Kestrel & Screech Owl House
- Sustainably sourced northeast pine, 10.875"L x 9.125"W x 17.625"H, built and finished in the USA by Coveside — the same maker behind several other species-specific houses covered on this site.
- 3-inch round entrance hole is the exact spec for American Kestrels, and doubles for Eastern Screech-Owls, which want nearly identical cavity dimensions.
- 1.5-inch interior perch near the entrance and ventilation slots above the hole, plus drainage holes at the base corners.
- Side panel swings open for the end-of-season cleanout every cavity-nester box needs, and it mounts to either a wall or a post.
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Coveside’s dual-species design is the reason to start here: since Eastern Screech-Owls and American Kestrels both want a roughly 3-inch cavity, one well-built box gives you a real shot at either tenant depending on who finds it first in your area. The pine build, interior perch, and hinged cleanout panel match the quality of Coveside’s other raptor and songbird houses, and the manufacturer’s own 10-30 foot mounting range gives you flexibility on pole height.
Mount it on a smooth metal pole, orient the entrance east or southeast, and pick a spot with a clear view of open field, pasture, or grassy roadside — kestrels hunt almost entirely by sight over short grass.
2. Woodlink Screech Owl & Kestrel House — Best Cedar Alternative
Woodlink Screech Owl & Kestrel House
- 3/4-inch kiln-dried cedar, naturally rot- and insect-resistant without any paint or sealant, 12.75"L x 9.25"W x 20"H.
- Built to the same 3-inch round entrance specification required for American Kestrels.
- Ships with a bag of wood shavings for nesting material, a nice head start over a bare-floor box.
- Front panel swings up for cleaning and nest checks, same hinge style as Woodlink's other nest-box lines.
If you’d rather buy cedar than pine, this is the direct swap — same 3-inch hole spec, same dual kestrel/screech-owl rating, just a different wood with its own natural weather resistance. The taller 20-inch body gives slightly more interior depth than the Coveside box, which some nest-box managers prefer for reducing how visible eggs and nestlings are to a predator peering in from the entrance.
3. JCS Wildlife Cedar Nest Box with Poly-Lumber Roof — Best Weatherproof Roof
JCS Wildlife Cedar Nest Box with Poly-Lumber Roof
- 5/8-inch cedar body paired with a recycled poly-lumber roof that won't crack, split, or fade the way an all-wood roof eventually does.
- Marketed explicitly for Western Screech, Eastern Screech, and Saw-Whet Owls as well as Kestrels — the same roughly 3-inch cavity spec shared across all four.
- Front door swings up for easy cleanout, with drainage holes in the base.
- Recommended mount height of 10-20 feet in a large, dense tree or on a pole — the low end of the wider 10-30 foot range other manufacturers cite.
The poly-lumber roof is the differentiator here: cedar and pine roofs both hold up fine for years, but a recycled-poly cap sheds sun and rain indefinitely without the graying and occasional splitting that all-wood roofs eventually show. If you’re mounting a box somewhere you won’t inspect or maintain often, that roof is worth the small price premium over the all-wood alternatives.
How to choose a kestrel nest box
- Match the 3-inch hole spec. Nearly double the size used for bluebirds and swallows — a smaller hole excludes kestrels entirely, and going much larger invites larger predators and competing cavity-nesters.
- Mount 10-20 feet up on a smooth metal pole. Manufacturers cite a wider 10-30 foot range, but most backyard installs land at the lower, more reachable end for cleaning access.
- Face east, southeast, or northeast. Morning sun warms the box without the afternoon heat buildup a west- or south-facing entrance would cause.
- Pick a spot with open sight lines. Kestrels hunt by watching for movement in short grass, so a box facing a field, pasture, or grassy roadside edge beats one tucked into dense woods.
- Add a predator guard. A stovepipe or cone baffle on the pole keeps raccoons, snakes, and cats from climbing up to eggs or nestlings — the same principle used across every cavity-nester box on this site.
- Expect a screech owl some seasons instead. Because kestrel and screech-owl cavity needs overlap almost exactly, don’t be surprised if an owl claims the box before a kestrel does — most manufacturers rate their kestrel boxes for both species for exactly this reason.
American Kestrels round out the raptor and cavity-nester lineup covered on this site: our best screech owl box guide covers the species most likely to share this exact box design, our best barn owl box and best barred owl box guides cover the larger owl species that need a bigger cavity and higher mount, and our best bluebird house guide covers the smaller 1.5-inch-hole boxes for songbirds sharing the same yard.
The bottom line
The Coveside Kestrel & Screech Owl House is the best kestrel nest box for most people — pine construction built to the exact 3-inch hole spec, an interior perch, and a manufacturer-backed 10-30 foot mounting range, for $79.99. If you’d rather buy cedar, the Woodlink Screech Owl & Kestrel House matches the same spec at a comparable price, and the JCS Wildlife Cedar Nest Box trades a small premium for a poly-lumber roof that never needs resealing. Whichever you choose, remember what actually matters: a 3-inch hole, a smooth pole mounted 10-20 feet up, an east-facing entrance, and a clear view of open hunting ground.