Bay-breasted Warbler
Setophaga castanea (A. Wilson, 1810)
Bay-breasted Warbler in all of Ohio
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Aves
- Order
- Passeriformes
- Family
- Parulidae
- Genus
- Setophaga

Range
Where it is recorded
Season shown in 2 of Ohio's 88 counties. Its mapped range covers 88. Explore Ohio
- No result yet (0)
- Within its mapped range (41)
- Recorded, too few records for a result (41)
- Recorded, season not shown (4)
- Season shown (2)
Counties as a table
| County | Records | In mapped range |
|---|---|---|
| Adams County | Recorded, too few records for a result | Yes: migration |
| Allen County | No qualifying records yet | Yes: migration |
| Ashland County | Recorded, too few records for a result | Yes: migration |
| Ashtabula County | Recorded, too few records for a result | Yes: migration |
| Athens County | Recorded, too few records for a result | Yes: migration |
| Auglaize County | No qualifying records yet | Yes: migration |
| Belmont County | No qualifying records yet | Yes: migration |
| Brown County | Recorded, too few records for a result | Yes: migration |
| Butler County | Recorded, too few records for a result | Yes: migration |
| Carroll County | Recorded, too few records for a result | Yes: migration |
| Champaign County | No qualifying records yet | Yes: migration |
| Clark County | Recorded, too few records for a result | Yes: migration |
| Clermont County | Recorded, too few records for a result | Yes: migration |
| Clinton County | No qualifying records yet | Yes: migration |
| Columbiana County | No qualifying records yet | Yes: migration |
| Coshocton County | No qualifying records yet | Yes: migration |
| Crawford County | No qualifying records yet | Yes: migration |
| Cuyahoga County | 123 · Recorded, season not shown | Yes: migration |
| Darke County | Recorded, too few records for a result | Yes: migration |
| Defiance County | No qualifying records yet | Yes: migration |
| Delaware County | Recorded, too few records for a result | Yes: migration |
| Erie County | Recorded, too few records for a result | Yes: migration |
| Fairfield County | Recorded, too few records for a result | Yes: migration |
| Fayette County | No qualifying records yet | Yes: migration |
| Franklin County | 31 · Recorded, season not shown | Yes: migration |
| Fulton County | No qualifying records yet | Yes: migration |
| Gallia County | No qualifying records yet | Yes: migration |
| Geauga County | Recorded, too few records for a result | Yes: migration |
| Greene County | Recorded, too few records for a result | Yes: migration |
| Guernsey County | No qualifying records yet | Yes: migration |
| Hamilton County | 33 · Season shown | Yes: migration |
| Hancock County | Recorded, too few records for a result | Yes: migration |
| Hardin County | Recorded, too few records for a result | Yes: migration |
| Harrison County | Recorded, too few records for a result | Yes: migration |
| Henry County | No qualifying records yet | Yes: migration |
| Highland County | Recorded, too few records for a result | Yes: migration |
| Hocking County | Recorded, too few records for a result | Yes: migration |
| Holmes County | Recorded, too few records for a result | Yes: migration |
| Huron County | No qualifying records yet | Yes: migration |
| Jackson County | No qualifying records yet | Yes: migration |
| Jefferson County | No qualifying records yet | Yes: migration |
| Knox County | Recorded, too few records for a result | Yes: migration |
| Lake County | 26 · Recorded, season not shown | Yes: migration |
| Lawrence County | No qualifying records yet | Yes: migration |
| Licking County | Recorded, too few records for a result | Yes: migration |
| Logan County | No qualifying records yet | Yes: migration |
| Lorain County | Recorded, too few records for a result | Yes: migration |
| Lucas County | 236 · Season shown | Yes: migration |
| Madison County | Recorded, too few records for a result | Yes: migration |
| Mahoning County | Recorded, too few records for a result | Yes: migration |
| Marion County | No qualifying records yet | Yes: migration |
| Medina County | Recorded, too few records for a result | Yes: migration |
| Meigs County | Recorded, too few records for a result | Yes: migration |
| Mercer County | No qualifying records yet | Yes: migration |
| Miami County | No qualifying records yet | Yes: migration |
| Monroe County | No qualifying records yet | Yes: migration |
| Montgomery County | Recorded, too few records for a result | Yes: migration |
| Morgan County | Recorded, too few records for a result | Yes: migration |
| Morrow County | Recorded, too few records for a result | Yes: migration |
| Muskingum County | No qualifying records yet | Yes: migration |
| Noble County | No qualifying records yet | Yes: migration |
| Ottawa County | Recorded, too few records for a result | Yes: migration |
| Paulding County | No qualifying records yet | Yes: migration |
| Perry County | No qualifying records yet | Yes: migration |
| Pickaway County | No qualifying records yet | Yes: migration |
| Pike County | No qualifying records yet | Yes: migration |
| Portage County | Recorded, too few records for a result | Yes: migration |
| Preble County | No qualifying records yet | Yes: migration |
| Putnam County | No qualifying records yet | Yes: migration |
| Richland County | Recorded, too few records for a result | Yes: migration |
| Ross County | No qualifying records yet | Yes: migration |
| Sandusky County | No qualifying records yet | Yes: migration |
| Scioto County | Recorded, too few records for a result | Yes: migration |
| Seneca County | No qualifying records yet | Yes: migration |
| Shelby County | No qualifying records yet | Yes: migration |
| Stark County | Recorded, too few records for a result | Yes: migration |
| Summit County | 45 · Recorded, season not shown | Yes: migration |
| Trumbull County | No qualifying records yet | Yes: migration |
| Tuscarawas County | No qualifying records yet | Yes: migration |
| Union County | No qualifying records yet | Yes: migration |
| Van Wert County | No qualifying records yet | Yes: migration |
| Vinton County | Recorded, too few records for a result | Yes: migration |
| Warren County | Recorded, too few records for a result | Yes: migration |
| Washington County | Recorded, too few records for a result | Yes: migration |
| Wayne County | Recorded, too few records for a result | Yes: migration |
| Williams County | Recorded, too few records for a result | Yes: migration |
| Wood County | No qualifying records yet | Yes: migration |
| Wyandot County | No qualifying records yet | Yes: migration |
Season
When it is recorded
In Henry County
Not enough evidence
In Ohio
Early May to late May, middle week mid-May, and again late August to mid-October, middle week mid-September
Recorded in two separate seasons, each shown with its own early, middle and late weeks.
Records per week from 979 records in 10 of the 10 years from 2016 to 2025. Shows when people recorded it, not a season or how common it is.
Show as a table
| Week | Records of Bay-breasted Warbler | Years recorded | Records of all species |
|---|---|---|---|
| Jan 4–10 | 0 | 0 | 6,211 |
| Jan 11–17 | 0 | 0 | 5,146 |
| Jan 18–24 | 0 | 0 | 4,645 |
| Jan 25–31 | 0 | 0 | 4,698 |
| Feb 1–7 | 0 | 0 | 6,023 |
| Feb 8–14 | 0 | 0 | 5,888 |
| Feb 15–21 | 0 | 0 | 5,436 |
| Feb 22–28 | 0 | 0 | 6,846 |
| Mar 1–7 | 0 | 0 | 8,321 |
| Mar 8–14 | 0 | 0 | 10,384 |
| Mar 15–21 | 0 | 0 | 12,620 |
| Mar 22–28 | 0 | 0 | 13,949 |
| Mar 29 – Apr 4 | 0 | 0 | 19,661 |
| Apr 5–11 | 0 | 0 | 26,860 |
| Apr 12–18 | 1 | 1 | 39,925 |
| Apr 19–25 | 0 | 0 | 41,623 |
| Apr 26 – May 2 | 4 | 3 | 56,391 |
| May 3–9 | 13 | 5 | 52,952 |
| May 10–16 | 189 | 10 | 53,785 |
| May 17–23 | 318 | 10 | 57,698 |
| May 24–30 | 55 | 7 | 54,651 |
| May 31 – Jun 6 | 3 | 2 | 53,099 |
| Jun 7–13 | 0 | 0 | 53,700 |
| Jun 14–20 | 0 | 0 | 56,625 |
| Jun 21–27 | 0 | 0 | 55,361 |
| Jun 28 – Jul 4 | 0 | 0 | 58,477 |
| Jul 5–11 | 0 | 0 | 61,336 |
| Jul 12–18 | 0 | 0 | 64,722 |
| Jul 19–25 | 0 | 0 | 69,753 |
| Jul 26 – Aug 1 | 0 | 0 | 59,416 |
| Aug 2–8 | 0 | 0 | 59,712 |
| Aug 9–15 | 0 | 0 | 55,994 |
| Aug 16–22 | 2 | 2 | 54,328 |
| Aug 23–29 | 8 | 5 | 51,772 |
| Aug 30 – Sep 5 | 29 | 8 | 57,167 |
| Sep 6–12 | 42 | 9 | 59,075 |
| Sep 13–19 | 103 | 8 | 54,543 |
| Sep 20–26 | 77 | 9 | 45,860 |
| Sep 27 – Oct 3 | 70 | 9 | 43,180 |
| Oct 4–10 | 37 | 8 | 37,841 |
| Oct 11–17 | 26 | 6 | 30,824 |
| Oct 18–24 | 2 | 1 | 21,156 |
| Oct 25–31 | 0 | 0 | 19,021 |
| Nov 1–7 | 0 | 0 | 14,172 |
| Nov 8–14 | 0 | 0 | 12,621 |
| Nov 15–21 | 0 | 0 | 7,965 |
| Nov 22–28 | 0 | 0 | 8,136 |
| Nov 29 – Dec 5 | 0 | 0 | 6,083 |
| Dec 6–12 | 0 | 0 | 6,004 |
| Dec 13–19 | 0 | 0 | 5,423 |
| Dec 20–26 | 0 | 0 | 5,661 |
| Dec 27 – Jan 2 | 0 | 0 | 8,459 |
What these results show
These results show when people recorded a species, not when or where it occurs. Missing weeks and low counts do not mean absence or scarcity, and counts are not abundance. Contributed records reflect where, when and what people chose to observe.
Identification
How to identify it
Often confused with
- Pine Warbler Setophaga pinus84 identifications worldwide named one where the other was meant
- Blackpoll Warbler Setophaga striata81 identifications worldwide named one where the other was meant
- Tennessee Warbler Leiothlypis peregrina40 identifications worldwide named one where the other was meant
- Chestnut-sided Warbler Setophaga pensylvanica26 identifications worldwide named one where the other was meant
- American Goldfinch Spinus tristis22 identifications worldwide named one where the other was meant
From iNaturalist’s similar-species counts, refreshed monthly: confusions in Ohio first, then worldwide. Only species with an Ohio result are listed.
Months not reported
- Jan: no record
- Feb: no record
- Mar: no record
- Apr: recorded
- May: recorded
- Jun: recorded
- Jul: no record
- Aug: recorded
- Sep: recorded
- Oct: recorded
- Nov: no record
- Dec: no record
Not reported in Ohio in July and November to March, 2016 to 2025.
Land cover where it is recorded
| Land cover | Its recordsAll Ohio records |
|---|---|
| Developed | 41%49% |
| Wetland | 33%5% |
| Forest | 20%31% |
| Open water | 4%3% |
| Farmland | 2%11% |
| Barren | 0.8%0.6% |
| Grassland and shrub | 0.8%0.9% |
From 364 records placed within 100 m, beside all Ohio records placed the same way. People record where they go, so this shows where records come from, not where the species lives. Land cover: USGS Annual NLCD, 2025 (opens in a new tab)
Sources
Where these results come from
- Records from iNaturalist research-grade observations and expert-identified GBIF datasets, CC0, CC BY and CC BY-NC. Sources
- Seasons use the published method and its evidence thresholds. Methods
- See it on iNaturalist (opens in a new tab)OpenPhenology is independent and not affiliated with iNaturalist.
Records behind the Ohio result
979 records from 2 datasets.
- iNaturalist Research-grade Observations (opens in a new tab) · iNaturalist.org · 974 recordsiNaturalist contributors, iNaturalist (2026). iNaturalist Research-grade Observations. iNaturalist.org. Occurrence dataset https://doi.org/10.15468/ab3s5x accessed via GBIF.org on 2026-11-13.
- iNaturalist observations (opens in a new tab) · iNaturalist.org · 5 recordsiNaturalist. Available from https://www.inaturalist.org. Accessed 2026-11-13
To cite: the GBIF download doi:10.15468/dl.y2jkt8 (opens in a new tab).
A spreadsheet (CSV) with a link to each record, on iNaturalist or GBIF. Records whose location was hidden by the observer or the source are counted but not linked.