BirdsIn Henry County, Ohio
Black-throated Blue Warbler
Setophaga caerulescens (J. F. Gmelin, 1789)
Black-throated Blue Warbler in all of Ohio- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Aves
- Order
- Passeriformes
- Family
- Parulidae
- Genus
- Setophaga
Conservation status
Of special interest in Ohio (Ohio Division of Wildlife, June 2026)
Ohio's Division of Wildlife names it as one at the edge of its range in Ohio, breeding here at low numbers. It is not listed as endangered or threatened.
Near Henry County
Range
Where it is recorded
Season shown in 0 of Ohio's 88 counties. Its mapped range covers 88. Explore Ohio
- No result yet (0)
- Within its mapped range (53)
- Recorded, too few records for a result (30)
- Recorded, season not shown (5)
- Season shown (0)
Counties as a table
| County | Records | In mapped range |
|---|---|---|
| Adams County | No qualifying records yet | 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 | No qualifying records yet | 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 | Recorded, too few records for a result | Yes: migration |
| Clark County | No qualifying records yet | 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 | 73 · 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 | No qualifying records yet | Yes: migration |
| Fayette County | No qualifying records yet | Yes: migration |
| Franklin County | 32 · 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 | No qualifying records yet | Yes: migration |
| Guernsey County | No qualifying records yet | Yes: migration |
| Hamilton County | Recorded, too few records for a result | Yes: migration |
| Hancock County | Recorded, too few records for a result | Yes: migration |
| Hardin County | No qualifying records yet | Yes: migration |
| Harrison County | No qualifying records yet | Yes: migration |
| Henry County | No qualifying records yet | Yes: migration |
| Highland County | No qualifying records yet | Yes: migration |
| Hocking County | No qualifying records yet | 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 | Recorded, too few records for a result | 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 | 176 · Recorded, season not shown | Yes: migration |
| Madison County | No qualifying records yet | 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 | No qualifying records yet | Yes: summer, migration |
| Mercer County | No qualifying records yet | Yes: migration |
| Miami County | No qualifying records yet | Yes: migration |
| Monroe County | No qualifying records yet | Yes: summer, migration |
| Montgomery County | Recorded, too few records for a result | Yes: migration |
| Morgan County | No qualifying records yet | Yes: migration |
| Morrow County | No qualifying records yet | Yes: migration |
| Muskingum County | No qualifying records yet | Yes: migration |
| Noble County | No qualifying records yet | Yes: migration |
| Ottawa County | 29 · Recorded, season not shown | Yes: migration |
| Paulding County | No qualifying records yet | Yes: migration |
| Perry County | No qualifying records yet | Yes: migration |
| Pickaway County | Recorded, too few records for a result | 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 | No qualifying records yet | 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 | 32 · Recorded, season not shown | Yes: migration |
| Trumbull County | No qualifying records yet | Yes: migration |
| Tuscarawas County | Recorded, too few records for a result | 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: summer, migration |
| Wayne County | Recorded, too few records for a result | Yes: migration |
| Williams County | No qualifying records yet | 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
Not enough records in Henry County yet to show a season. A season needs at least 20 records from 5 different years. Missing records do not mean it is absent.
In Ohio
Early May to mid-May, middle week early May, and again early September to mid-October, middle week late September
Recorded in two separate seasons, each shown with its own early, middle and late weeks.
This week · Nov 8–14
Show over the bars
Records per week from 632 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 Black-throated Blue 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 | 0 | 0 | 39,925 |
| Apr 19–25 | 0 | 0 | 41,623 |
| Apr 26 – May 2 | 7 | 4 | 56,391 |
| May 3–9 | 100 | 8 | 52,952 |
| May 10–16 | 252 | 10 | 53,785 |
| May 17–23 | 123 | 10 | 57,698 |
| May 24–30 | 14 | 6 | 54,651 |
| May 31 – Jun 6 | 1 | 1 | 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 | 0 | 0 | 54,328 |
| Aug 23–29 | 1 | 1 | 51,772 |
| Aug 30 – Sep 5 | 4 | 4 | 57,167 |
| Sep 6–12 | 14 | 6 | 59,075 |
| Sep 13–19 | 25 | 7 | 54,543 |
| Sep 20–26 | 23 | 7 | 45,860 |
| Sep 27 – Oct 3 | 28 | 10 | 43,180 |
| Oct 4–10 | 24 | 8 | 37,841 |
| Oct 11–17 | 13 | 7 | 30,824 |
| Oct 18–24 | 1 | 1 | 21,156 |
| Oct 25–31 | 1 | 1 | 19,021 |
| Nov 1–7 | 0 | 0 | 14,172 |
| Nov 8–14 | 1 | 1 | 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
Look-alikes
When
Land cover
Often confused with
- Dark-eyed Junco Junco hyemalis17 identifications worldwide named one where the other was meant
- Tennessee Warbler Leiothlypis peregrina14 identifications worldwide named one where the other was meant
- Northern Parula Setophaga americana11 identifications worldwide named one where the other was meant
- Common Yellowthroat Geothlypis trichas10 identifications worldwide named one where the other was meant
- Orange-crowned Warbler Leiothlypis celata10 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: no record
- Jul: no record
- Aug: recorded
- Sep: recorded
- Oct: recorded
- Nov: recorded
- Dec: no record
Not reported in Ohio in June to July and December to March, 2016 to 2025.
Land cover where it is recorded
| Land cover | Its recordsAll Ohio records |
|---|---|
| Developed | 41%49% |
| Wetland | 34%5% |
| Forest | 24%31% |
| Open water | 1%3% |
| Farmland | 0.5%11% |
From 201 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
632 records from 2 datasets.
- iNaturalist Research-grade Observations (opens in a new tab) · iNaturalist.org · 627 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.