American Kestrels in Arizona
When American are present in Arizona, when they nest, which native Arizona plants feed them, and how to host them in a USDA 4b–10b yard.
- Status in Arizona
- Year-round resident
- Nesting window
- February–June
- Broods
- 1–2 per season
- Hardiness zones
- USDA 4b–10b
- Nest box
- 3 in hole, 8 × 8 in floor, 10–30 ft
When to expect American in Arizona
American Kestrels live in Arizona all year. Low deserts stay mild and host many wintering sparrows and hummingbirds; the high country gets snow. That makes the cold months the time your yard matters most to them.
Hot Sonoran and Mojave deserts in the south and west, with pine-oak sky islands and the Colorado Plateau rising above 7,000 ft.
Nesting in Arizona
Across Arizona, American typically nest from February–June. Plan around that window: January for setup, June for clean-out.
Summer highs above 110°F in Phoenix and Tucson make water the single strongest attractant; the July monsoon triggers a second breeding pulse.
- Have boxes cleaned and mounted before January — American begin prospecting ahead of egg-laying.
- Use a 3 in entrance on a 8 × 8 in floor, mounted 10–30 ft.
- Fit a pole baffle or hole guard; ventilation gaps and drainage holes are essential.
- Clean out old nests after each brood and again after June.
Native Arizona plants that attract American
Of the regional native plants we track for Arizona, these 8 provide food or cover American use:
Summer fruit and one of the top caterpillar host trees.
Late-summer berry clusters taken by over 40 bird species.
Insect-rich in fall and seed in winter.
Dark summer fruit and heavy caterpillar load.
Seeds and bark insects; pygmy nuthatch and woodpecker habitat.
Acorns for jays and woodpeckers across the southern Rockies.
Late-season bloom supports insects; seed for sparrows.
Seed pods and insect-rich spring bloom.
Feeding American through the Arizona year
- Top foods: None — hunts in open ground; a kestrel box is the draw.
- In Arizona's winter: Low deserts stay mild and host many wintering sparrows and hummingbirds; the high country gets snow.
Frequently asked
Are American in Arizona year-round?
Yes. American Kestrels are year-round residents in Arizona.
When do American nest in Arizona?
Nesting in Arizona typically runs February–June, with 1–2 per season. Clutches are 3–7 eggs, incubated for 26–32 days.
What native plants attract American in Arizona?
Black cherry, American elderberry, Tall goldenrod, Chokecherry, Ponderosa pine, Gambel oak, Rabbitbrush, Palo verde are native plants in Arizona that provide food or cover for American.
What size birdhouse hole do American need?
3 in, with a floor of 8 × 8 in mounted 10–30 ft.
American Kestrels in other regions
Other backyard birds in Arizona
Sources
- American Kestrel — All About Birds, Cornell Lab of Ornithology
- American Kestrel life history — Cornell Lab of Ornithology
- American Kestrel — Audubon Guide to North American Birds
- NestWatch nest box plans and species requirements — Cornell Lab
- eBird region overview and bar charts — Arizona
- USDA Plant Hardiness Zone Map (2023)
- Audubon Native Plants Database
Timing reflects typical patterns for the region as a whole; local dates vary with elevation and year. Check the linked eBird bar charts for your county.