The best feeder for tree swallows
Tree swallows readily take bluebird-style nest boxes; mount boxes in pairs 15–25 ft apart to share with bluebirds.
Feeder styles that work
Water often attracts this species more than food.
What to fill it with
- Crushed eggshells in spring
Sizing the feeder to the bird
The Tree Swallow measures 4.7–5.9 in and weighs 0.6–0.9 oz. Perches, ports and landing surfaces need to fit that frame — too small and the bird can't feed comfortably, too open and larger birds and squirrels dominate.
Keep it clean
Scrub feeders every two weeks in hot soapy water, soak 10 minutes in a 1:9 bleach solution, rinse and dry before refilling. Rake up hulls underneath.
Frequently asked
What kind of feeder is best for tree swallows?
Shallow bird bath (1–2 in deep). Water often attracts this species more than food.
What should I put in a feeder for tree swallows?
Crushed eggshells in spring.
Where should I place a feeder for tree swallows?
Tree swallows readily take bluebird-style nest boxes; mount boxes in pairs 15–25 ft apart to share with bluebirds.
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
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.