Skip to content
OpenPhenologybeta
Cerulean Warbler (Setophaga cerulea)
(c) Matt Schenck, some rights reserved (CC BY), uploaded by Matt Schenck · CC BY 4.0 (opens in a new tab) · iNaturalist (opens in a new tab)
BirdsIn Ohio

Cerulean Warbler

Setophaga cerulea (A. Wilson, 1810)

Kingdom
Animalia
Phylum
Chordata
Class
Aves
Order
Passeriformes
Family
Parulidae
Genus
Setophaga

Conservation status

Species of concern in Ohio (Ohio Division of Wildlife, June 2026)

Ohio's Division of Wildlife names it as one that might become threatened in Ohio under continued or increased stress, or one it has some concern for but too little information to judge. It is not listed as endangered or threatened.

We remember your county on this device only, until you clear it. Your ZIP code, city or location never leaves your device.

Range

Where it is recorded

Not enough evidence yet

Recorded in 30 of Ohio's 88 counties, with too few records in each for a result. Its published mapped range covers 88 of Ohio's 88 counties.

  • No result yet (0)
  • Within its mapped range (58)
  • Recorded, too few records for a result (30)
  • Recorded, season not shown (0)
  • Season shown (0)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Range: USGS Gap Analysis Project, Species Range Maps CONUS_2001 (2018). Show as a table
Counties as a table
Cerulean Warbler by Ohio county: records and mapped range
CountyRecordsIn mapped range
Adams CountyNo qualifying records yetYes: summer
Allen CountyNo qualifying records yetYes: summer
Ashland CountyRecorded, too few records for a resultYes: summer
Ashtabula CountyNo qualifying records yetYes: summer
Athens CountyRecorded, too few records for a resultYes: summer
Auglaize CountyNo qualifying records yetYes: summer
Belmont CountyNo qualifying records yetYes: summer
Brown CountyNo qualifying records yetYes: summer
Butler CountyNo qualifying records yetYes: summer
Carroll CountyNo qualifying records yetYes: summer
Champaign CountyNo qualifying records yetYes: summer
Clark CountyNo qualifying records yetYes: summer
Clermont CountyNo qualifying records yetYes: summer
Clinton CountyNo qualifying records yetYes: summer
Columbiana CountyRecorded, too few records for a resultYes: summer
Coshocton CountyRecorded, too few records for a resultYes: summer
Crawford CountyNo qualifying records yetYes: summer
Cuyahoga CountyRecorded, too few records for a resultYes: summer
Darke CountyRecorded, too few records for a resultYes: summer
Defiance CountyNo qualifying records yetYes: summer
Delaware CountyNo qualifying records yetYes: summer
Erie CountyRecorded, too few records for a resultYes: summer
Fairfield CountyNo qualifying records yetYes: summer
Fayette CountyNo qualifying records yetYes: summer
Franklin CountyNo qualifying records yetYes: summer
Fulton CountyNo qualifying records yetYes: summer
Gallia CountyNo qualifying records yetYes: summer
Geauga CountyRecorded, too few records for a resultYes: summer
Greene CountyNo qualifying records yetYes: summer
Guernsey CountyRecorded, too few records for a resultYes: summer
Hamilton CountyRecorded, too few records for a resultYes: summer
Hancock CountyNo qualifying records yetYes: summer
Hardin CountyNo qualifying records yetYes: summer
Harrison CountyRecorded, too few records for a resultYes: summer
Henry CountyNo qualifying records yetYes: summer
Highland CountyNo qualifying records yetYes: summer
Hocking CountyRecorded, too few records for a resultYes: summer
Holmes CountyNo qualifying records yetYes: summer
Huron CountyNo qualifying records yetYes: summer
Jackson CountyNo qualifying records yetYes: summer
Jefferson CountyRecorded, too few records for a resultYes: summer
Knox CountyRecorded, too few records for a resultYes: summer
Lake CountyNo qualifying records yetYes: summer
Lawrence CountyNo qualifying records yetYes: summer
Licking CountyRecorded, too few records for a resultYes: summer
Logan CountyNo qualifying records yetYes: summer
Lorain CountyNo qualifying records yetYes: summer
Lucas CountyRecorded, too few records for a resultYes: summer
Madison CountyNo qualifying records yetYes: summer
Mahoning CountyNo qualifying records yetYes: summer
Marion CountyNo qualifying records yetYes: summer
Medina CountyRecorded, too few records for a resultYes: summer
Meigs CountyNo qualifying records yetYes: summer
Mercer CountyNo qualifying records yetYes: summer
Miami CountyNo qualifying records yetYes: summer
Monroe CountyNo qualifying records yetYes: summer
Montgomery CountyRecorded, too few records for a resultYes: summer
Morgan CountyRecorded, too few records for a resultYes: summer
Morrow CountyNo qualifying records yetYes: summer
Muskingum CountyRecorded, too few records for a resultYes: summer
Noble CountyNo qualifying records yetYes: summer
Ottawa CountyNo qualifying records yetYes: summer
Paulding CountyNo qualifying records yetYes: summer
Perry CountyRecorded, too few records for a resultYes: summer
Pickaway CountyNo qualifying records yetYes: summer
Pike CountyNo qualifying records yetYes: summer
Portage CountyNo qualifying records yetYes: summer
Preble CountyNo qualifying records yetYes: summer
Putnam CountyNo qualifying records yetYes: summer
Richland CountyRecorded, too few records for a resultYes: summer
Ross CountyRecorded, too few records for a resultYes: summer
Sandusky CountyNo qualifying records yetYes: summer
Scioto CountyRecorded, too few records for a resultYes: summer
Seneca CountyNo qualifying records yetYes: summer
Shelby CountyNo qualifying records yetYes: summer
Stark CountyRecorded, too few records for a resultYes: summer
Summit CountyRecorded, too few records for a resultYes: summer
Trumbull CountyRecorded, too few records for a resultYes: summer
Tuscarawas CountyNo qualifying records yetYes: summer
Union CountyNo qualifying records yetYes: summer
Van Wert CountyNo qualifying records yetYes: summer
Vinton CountyRecorded, too few records for a resultYes: summer
Warren CountyNo qualifying records yetYes: summer
Washington CountyRecorded, too few records for a resultYes: summer
Wayne CountyRecorded, too few records for a resultYes: summer
Williams CountyNo qualifying records yetYes: summer
Wood CountyNo qualifying records yetYes: summer
Wyandot CountyNo qualifying records yetYes: summer

Season

When it is recorded

In Ohio

Late April to early July, middle week May 10–16

Show over the bars
Recording in Ohio · records of all species each week, 1,691,199 in all

Records per week from 163 records in 10 of the 10 years from 2016 to 2025. Shows when people recorded it, not how common it is. The grey bars show how many records of all species were made here each week, so you can see when recording itself was high or low; the season is not adjusted by them.

Recorded on 110 dates. Latest record: October 2025.

Show as a table
Records of Cerulean Warbler in Ohio each week, and records of all species
WeekRecords of Cerulean WarblerYears recordedRecords of all species
Jan 4–10006,211
Jan 11–17005,146
Jan 18–24004,645
Jan 25–31004,698
Feb 1–7006,023
Feb 8–14005,888
Feb 15–21005,436
Feb 22–28006,846
Mar 1–7008,321
Mar 8–140010,384
Mar 15–210012,620
Mar 22–280013,949
Mar 29 – Apr 40019,661
Apr 5–110026,860
Apr 12–180039,925
Apr 19–253341,623
Apr 26 – May 216856,391
May 3–9431052,952
May 10–1626753,785
May 17–2328957,698
May 24–306654,651
May 31 – Jun 64353,099
Jun 7–137453,700
Jun 14–207456,625
Jun 21–276355,361
Jun 28 – Jul 48658,477
Jul 5–114461,336
Jul 12–181164,722
Jul 19–252269,753
Jul 26 – Aug 11159,416
Aug 2–80059,712
Aug 9–150055,994
Aug 16–220054,328
Aug 23–290051,772
Aug 30 – Sep 50057,167
Sep 6–120059,075
Sep 13–190054,543
Sep 20–260045,860
Sep 27 – Oct 30043,180
Oct 4–101137,841
Oct 11–170030,824
Oct 18–240021,156
Oct 25–310019,021
Nov 1–70014,172
Nov 8–140012,621
Nov 15–21007,965
Nov 22–28008,136
Nov 29 – Dec 5006,083
Dec 6–12006,004
Dec 13–19005,423
Dec 20–26005,661
Dec 27 – Jan 2008,459

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.

Relatives

In the same genus

Other Setophaga recorded in Ohio

American RedstartSetophaga ruticillaBay-breasted WarblerSetophaga castaneaBlack-throated Blue WarblerSetophaga caerulescensBlack-throated Green WarblerSetophaga virensBlackburnian WarblerSetophaga fuscaBlackpoll WarblerSetophaga striataCape May WarblerSetophaga tigrinaChestnut-sided WarblerSetophaga pensylvanicaHooded WarblerSetophaga citrinaMagnolia WarblerSetophaga magnoliaNorthern ParulaSetophaga americanaNorthern Yellow WarblerSetophaga aestivaPalm WarblerSetophaga palmarumPine WarblerSetophaga pinusPrairie WarblerSetophaga discolorYellow-rumped WarblerSetophaga coronataYellow-throated WarblerSetophaga dominica

Identification

How to identify it

Often confused with

  • Northern Parula Setophaga americana12 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.

When it is heard

Reported with a sound recording, too few times for a season.

From 2 iNaturalist records with a sound recording. Sounds are not kept or played here. Listen on iNaturalist (opens in a new tab)

Months not reported

  1. Jan: no record
  2. Feb: no record
  3. Mar: no record
  4. Apr: recorded
  5. May: recorded
  6. Jun: recorded
  7. Jul: recorded
  8. Aug: no record
  9. Sep: no record
  10. Oct: recorded
  11. Nov: no record
  12. Dec: no record

Not reported in Ohio in August to September and November to March, 2016 to 2025.

Time of day it is recorded

midnight6 amnoon6 pm

From 155 Ohio records with a time. Most records are made when people are outside, so night and early-morning species are under-recorded.

Land cover where it is recorded

Land coverIts recordsAll Ohio records
Forest59%31%
Developed25%49%
Wetland16%5%

From 69 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

163 records from 2 datasets.

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.