The best feeder for prothonotary warblers
The only eastern warbler that nests in cavities — it readily takes small nest boxes over water.
Feeder styles that work
Water often attracts this species more than food.
What to fill it with
- None — a swamp nest box is the draw
Sizing the feeder to the bird
The Prothonotary Warbler measures 5.1 in and weighs 0.4–0.6 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 prothonotary warblers?
Shallow bird bath (1–2 in deep). Water often attracts this species more than food.
What should I put in a feeder for prothonotary warblers?
None — a swamp nest box is the draw.
Where should I place a feeder for prothonotary warblers?
The only eastern warbler that nests in cavities — it readily takes small nest boxes over water.
Sources
- Prothonotary Warbler — All About Birds, Cornell Lab of Ornithology
- Prothonotary Warbler life history — Cornell Lab of Ornithology
- Prothonotary Warbler — 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.