Tree Swallows in Nevada
When tree swallows are present in Nevada, when they nest, which native Nevada plants feed them, and how to host them in a USDA 4a–10a yard.
- Status in Nevada
- Summer breeder
- Nesting window
- May–June
- Broods
- 1 per season
- Hardiness zones
- USDA 4a–10a
- Nest box
- 1 1/2 in hole, 5 × 5 in floor, 5–10 ft
When to expect tree swallows in Nevada
Tree Swallows are summer residents in Nevada, arriving shortly before nesting begins in May and leaving after the young are independent. Through the season they feed on flies, mayflies and dragonflies.
Great Basin cold desert in the north and Mojave hot desert around Las Vegas.
Nesting in Nevada
Across Nevada, tree swallows typically nest from May–June. Nest site: nest box or tree cavity lined with feathers. Females lay 4–7 eggs, incubate for 11–20 days, and young leave the nest after 15–25 days.
Very hot, dry summers; water is the top attractant.
- Have boxes cleaned and mounted before April — tree swallows begin prospecting ahead of egg-laying.
- Use a 1 1/2 in entrance on a 5 × 5 in floor, mounted 5–10 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 Nevada plants that attract tree swallows
Of the regional native plants we track for Nevada, these 7 provide food or cover tree swallows use:
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 for crossbills, siskins and chickadees.
Early catkins draw insects for arriving warblers and hummingbirds.
Feeding tree swallows through the Nevada year
Tree swallows readily take bluebird-style nest boxes; mount boxes in pairs 15–25 ft apart to share with bluebirds.
- Best foods: Crushed eggshells in spring.
- In Nevada's summer: offer water and insect foods; natural food is abundant.
Full diet breakdown for tree swallows · Best feeder for tree swallows
Frequently asked
Are tree swallows in Nevada year-round?
No. Tree Swallows are summer breeders in Nevada and leave for the winter.
When do tree swallows nest in Nevada?
Nesting in Nevada typically runs May–June, with 1 per season. Clutches are 4–7 eggs, incubated for 11–20 days.
What native plants attract tree swallows in Nevada?
Tall goldenrod, Chokecherry, Ponderosa pine, Gambel oak, Rabbitbrush, Douglas fir, Willow (Bebb) are native plants in Nevada that provide food or cover for tree swallows.
What size birdhouse hole do tree swallows need?
1 1/2 in, with a floor of 5 × 5 in mounted 5–10 ft.
Tree Swallows in other regions
Other backyard birds in Nevada
Sources
- Tree Swallow — All About Birds, Cornell Lab of Ornithology
- Tree Swallow life history — Cornell Lab of Ornithology
- Tree Swallow — Audubon Guide to North American Birds
- NestWatch nest box plans and species requirements — Cornell Lab
- eBird region overview and bar charts — Nevada
- 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.