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Nearby · Brown Co.
Bufflehead (Bucephala albeola)
(c) ianhearn, some rights reserved (CC BY-NC) · CC BY-NC 4.0 (opens in a new tab) · iNaturalist (opens in a new tab)
BirdsIn Brown County, Ohio

Bufflehead

Bucephala albeola (Linnaeus, 1758)

Bufflehead in all of Ohio
Kingdom
Animalia
Phylum
Chordata
Class
Aves
Order
Anseriformes
Family
Anatidae
Genus
Bucephala
Near Brown 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 (39)
  • Recorded, too few records for a result (39)
  • Recorded, season not shown (10)
  • 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
Bufflehead by Ohio county: records and mapped range
CountyRecordsIn mapped range
Adams CountyNo qualifying records yetYes: winter
Allen CountyRecorded, too few records for a resultYes: winter
Ashland CountyRecorded, too few records for a resultYes: winter
Ashtabula CountyRecorded, too few records for a resultYes: winter
Athens CountyRecorded, too few records for a resultYes: migration
Auglaize CountyRecorded, too few records for a resultYes: winter
Belmont CountyRecorded, too few records for a resultYes: migration
Brown CountyRecorded, too few records for a resultYes: winter
Butler CountyRecorded, too few records for a resultYes: winter
Carroll CountyNo qualifying records yetYes: winter, migration
Champaign CountyRecorded, too few records for a resultYes: winter
Clark CountyRecorded, too few records for a resultYes: winter
Clermont CountyRecorded, too few records for a resultYes: winter
Clinton CountyNo qualifying records yetYes: winter
Columbiana CountyRecorded, too few records for a resultYes: winter, migration
Coshocton CountyNo qualifying records yetYes: winter
Crawford CountyNo qualifying records yetYes: winter
Cuyahoga County150 · Recorded, season not shownYes: winter
Darke CountyRecorded, too few records for a resultYes: winter
Defiance CountyNo qualifying records yetYes: winter
Delaware CountyRecorded, too few records for a resultYes: winter
Erie CountyRecorded, too few records for a resultYes: winter
Fairfield CountyNo qualifying records yetYes: winter
Fayette CountyNo qualifying records yetYes: winter
Franklin County23 · Recorded, season not shownYes: winter
Fulton CountyNo qualifying records yetYes: winter
Gallia CountyNo qualifying records yetYes: migration
Geauga CountyRecorded, too few records for a resultYes: winter
Greene CountyRecorded, too few records for a resultYes: winter
Guernsey CountyRecorded, too few records for a resultYes: winter, migration
Hamilton County94 · Recorded, season not shownYes: winter
Hancock CountyRecorded, too few records for a resultYes: winter
Hardin CountyNo qualifying records yetYes: winter
Harrison CountyRecorded, too few records for a resultYes: winter, migration
Henry CountyRecorded, too few records for a resultYes: winter
Highland CountyRecorded, too few records for a resultYes: winter
Hocking CountyRecorded, too few records for a resultYes: winter
Holmes CountyNo qualifying records yetYes: winter
Huron CountyNo qualifying records yetYes: winter
Jackson CountyNo qualifying records yetYes: winter, migration
Jefferson CountyNo qualifying records yetYes: migration
Knox CountyNo qualifying records yetYes: winter
Lake County25 · Recorded, season not shownYes: winter
Lawrence CountyNo qualifying records yetYes: migration
Licking CountyRecorded, too few records for a resultYes: winter
Logan CountyRecorded, too few records for a resultYes: winter
Lorain County36 · Recorded, season not shownYes: winter
Lucas County38 · Recorded, season not shownYes: winter
Madison CountyNo qualifying records yetYes: winter
Mahoning CountyRecorded, too few records for a resultYes: winter, migration
Marion CountyNo qualifying records yetYes: winter
Medina County23 · Recorded, season not shownYes: winter
Meigs CountyNo qualifying records yetYes: migration
Mercer CountyRecorded, too few records for a resultYes: winter
Miami CountyNo qualifying records yetYes: winter
Monroe CountyNo qualifying records yetYes: migration
Montgomery CountyRecorded, too few records for a resultYes: winter
Morgan CountyNo qualifying records yetYes: winter, migration
Morrow CountyRecorded, too few records for a resultYes: winter
Muskingum CountyRecorded, too few records for a resultYes: winter, migration
Noble CountyNo qualifying records yetYes: migration
Ottawa CountyRecorded, too few records for a resultYes: winter
Paulding CountyNo qualifying records yetYes: winter
Perry CountyNo qualifying records yetYes: winter
Pickaway CountyNo qualifying records yetYes: winter
Pike CountyNo qualifying records yetYes: winter
Portage County41 · Recorded, season not shownYes: winter
Preble CountyNo qualifying records yetYes: winter
Putnam CountyNo qualifying records yetYes: winter
Richland CountyRecorded, too few records for a resultYes: winter
Ross CountyNo qualifying records yetYes: winter
Sandusky CountyNo qualifying records yetYes: winter
Scioto CountyNo qualifying records yetYes: winter, migration
Seneca CountyRecorded, too few records for a resultYes: winter
Shelby CountyNo qualifying records yetYes: winter
Stark County23 · Recorded, season not shownYes: winter
Summit County118 · Recorded, season not shownYes: winter
Trumbull CountyRecorded, too few records for a resultYes: winter, migration
Tuscarawas CountyRecorded, too few records for a resultYes: winter
Union CountyNo qualifying records yetYes: winter
Van Wert CountyNo qualifying records yetYes: winter
Vinton CountyNo qualifying records yetYes: winter, migration
Warren CountyRecorded, too few records for a resultYes: winter
Washington CountyNo qualifying records yetYes: migration
Wayne CountyRecorded, too few records for a resultYes: winter
Williams CountyNo qualifying records yetYes: winter
Wood CountyRecorded, too few records for a resultYes: winter
Wyandot CountyRecorded, too few records for a resultYes: winter

Season

When it is recorded

In Brown County

Not enough evidence

Not enough records in Brown 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

Late November to mid-April, middle week Mar 1–7

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

Records per week from 1,033 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 576 dates. Latest record: December 2025.

Show as a table
Records of Bufflehead in Ohio each week, and records of all species
WeekRecords of BuffleheadYears recordedRecords of all species
Jan 4–104196,211
Jan 11–173685,146
Jan 18–242694,645
Jan 25–312284,698
Feb 1–73066,023
Feb 8–141975,888
Feb 15–213195,436
Feb 22–284196,846
Mar 1–736108,321
Mar 8–1470910,384
Mar 15–21791012,620
Mar 22–2887813,949
Mar 29 – Apr 4911019,661
Apr 5–1156926,860
Apr 12–1850939,925
Apr 19–2534941,623
Apr 26 – May 217856,391
May 3–911752,952
May 10–162253,785
May 17–233257,698
May 24–300054,651
May 31 – Jun 60053,099
Jun 7–131153,700
Jun 14–200056,625
Jun 21–270055,361
Jun 28 – Jul 40058,477
Jul 5–110061,336
Jul 12–181164,722
Jul 19–251169,753
Jul 26 – Aug 10059,416
Aug 2–81159,712
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 4–100037,841
Oct 11–170030,824
Oct 18–242221,156
Oct 25–310019,021
Nov 1–71114,172
Nov 8–1419712,621
Nov 15–212097,965
Nov 22–285488,136
Nov 29 – Dec 53796,083
Dec 6–121566,004
Dec 13–194495,423
Dec 20–262795,661
Dec 27 – Jan 22888,459

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

Telling it apart

From what Ohio’s records show. Only what the records support is shown.

Often confused with

  • Hooded Merganser Lophodytes cucullatusOften confused in Ohio: 10 identifications in Ohio named one where the other was meant
  • Common Goldeneye Bucephala clangula184 identifications worldwide named one where the other was meant
  • Ruddy Duck Oxyura jamaicensis72 identifications worldwide named one where the other was meant
  • Common Merganser Mergus merganser38 identifications worldwide named one where the other was meant
  • Mallard Anas platyrhynchos31 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

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

Not reported in Ohio in September, 2016 to 2025.

Land cover where it is recorded

Land coverIts recordsAll Ohio records
Open water57%3%
Developed18%49%
Wetland14%5%
Farmland4%11%
Forest4%31%
Grassland and shrub2%0.9%
Barren1%0.6%

From 409 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

1,033 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.