Season shown in 2 of Ohio's 88 counties. Its mapped range covers 88. Explore Ohio
No result yet (0)
Within its mapped range (6)
Recorded, too few records for a result (52)
Recorded, season not shown (28)
Season shown (2)
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
Red-winged Blackbird by Ohio county: records and mapped range
County
Records
In mapped range
Adams County
Recorded, too few records for a result
Yes: year-round
Allen County
Recorded, too few records for a result
Yes: year-round
Ashland County
26 · Recorded, season not shown
Yes: year-round
Ashtabula County
Recorded, too few records for a result
Yes: year-round
Athens County
87 · Recorded, season not shown
Yes: year-round
Auglaize County
Recorded, too few records for a result
Yes: year-round
Belmont County
Recorded, too few records for a result
Yes: year-round
Brown County
Recorded, too few records for a result
Yes: year-round
Butler County
58 · Recorded, season not shown
Yes: year-round
Carroll County
Recorded, too few records for a result
Yes: year-round
Champaign County
Recorded, too few records for a result
Yes: year-round
Clark County
23 · Recorded, season not shown
Yes: year-round
Clermont County
36 · Recorded, season not shown
Yes: year-round
Clinton County
No qualifying records yet
Yes: year-round
Columbiana County
60 · Recorded, season not shown
Yes: year-round
Coshocton County
Recorded, too few records for a result
Yes: year-round
Crawford County
26 · Recorded, season not shown
Yes: year-round
Cuyahoga County
494 · Season shown
Yes: year-round
Darke County
Recorded, too few records for a result
Yes: year-round
Defiance County
Recorded, too few records for a result
Yes: year-round
Delaware County
56 · Recorded, season not shown
Yes: year-round
Erie County
140 · Season shown
Yes: year-round
Fairfield County
Recorded, too few records for a result
Yes: year-round
Fayette County
Recorded, too few records for a result
Yes: year-round
Franklin County
295 · Recorded, season not shown
Yes: year-round
Fulton County
Recorded, too few records for a result
Yes: year-round
Gallia County
Recorded, too few records for a result
Yes: year-round
Geauga County
48 · Recorded, season not shown
Yes: year-round
Greene County
152 · Recorded, season not shown
Yes: year-round
Guernsey County
Recorded, too few records for a result
Yes: year-round
Hamilton County
159 · Recorded, season not shown
Yes: year-round
Hancock County
Recorded, too few records for a result
Yes: year-round
Hardin County
Recorded, too few records for a result
Yes: year-round
Harrison County
Recorded, too few records for a result
Yes: year-round
Henry County
Recorded, too few records for a result
Yes: year-round
Highland County
Recorded, too few records for a result
Yes: year-round
Hocking County
29 · Recorded, season not shown
Yes: year-round
Holmes County
Recorded, too few records for a result
Yes: year-round
Huron County
Recorded, too few records for a result
Yes: year-round
Jackson County
Recorded, too few records for a result
Yes: year-round
Jefferson County
Recorded, too few records for a result
Yes: year-round
Knox County
Recorded, too few records for a result
Yes: year-round
Lake County
107 · Recorded, season not shown
Yes: year-round
Lawrence County
No qualifying records yet
Yes: year-round
Licking County
34 · Recorded, season not shown
Yes: year-round
Logan County
25 · Recorded, season not shown
Yes: year-round
Lorain County
171 · Recorded, season not shown
Yes: year-round
Lucas County
223 · Recorded, season not shown
Yes: year-round
Madison County
Recorded, too few records for a result
Yes: year-round
Mahoning County
Recorded, too few records for a result
Yes: year-round
Marion County
Recorded, too few records for a result
Yes: year-round
Medina County
101 · Recorded, season not shown
Yes: year-round
Meigs County
No qualifying records yet
Yes: year-round
Mercer County
Recorded, too few records for a result
Yes: year-round
Miami County
Recorded, too few records for a result
Yes: year-round
Monroe County
No qualifying records yet
Yes: year-round
Montgomery County
85 · Recorded, season not shown
Yes: year-round
Morgan County
Recorded, too few records for a result
Yes: year-round
Morrow County
Recorded, too few records for a result
Yes: year-round
Muskingum County
Recorded, too few records for a result
Yes: year-round
Noble County
No qualifying records yet
Yes: year-round
Ottawa County
121 · Recorded, season not shown
Yes: year-round
Paulding County
No qualifying records yet
Yes: year-round
Perry County
Recorded, too few records for a result
Yes: year-round
Pickaway County
Recorded, too few records for a result
Yes: year-round
Pike County
Recorded, too few records for a result
Yes: year-round
Portage County
77 · Recorded, season not shown
Yes: year-round
Preble County
Recorded, too few records for a result
Yes: year-round
Putnam County
Recorded, too few records for a result
Yes: year-round
Richland County
27 · Recorded, season not shown
Yes: year-round
Ross County
Recorded, too few records for a result
Yes: year-round
Sandusky County
Recorded, too few records for a result
Yes: year-round
Scioto County
Recorded, too few records for a result
Yes: year-round
Seneca County
Recorded, too few records for a result
Yes: year-round
Shelby County
Recorded, too few records for a result
Yes: year-round
Stark County
119 · Recorded, season not shown
Yes: year-round
Summit County
888 · Recorded, season not shown
Yes: year-round
Trumbull County
Recorded, too few records for a result
Yes: year-round
Tuscarawas County
Recorded, too few records for a result
Yes: year-round
Union County
28 · Recorded, season not shown
Yes: year-round
Van Wert County
Recorded, too few records for a result
Yes: year-round
Vinton County
Recorded, too few records for a result
Yes: year-round
Warren County
42 · Recorded, season not shown
Yes: year-round
Washington County
Recorded, too few records for a result
Yes: year-round
Wayne County
79 · Recorded, season not shown
Yes: year-round
Williams County
Recorded, too few records for a result
Yes: year-round, summer
Wood County
Recorded, too few records for a result
Yes: year-round
Wyandot County
Recorded, too few records for a result
Yes: year-round
Season
When it is recorded
In Union County
Not enough evidence
The weeks are still too uncertain to show a season. Based on 28 records in 9 of the 10 years from 2016 to 2025, above the minimum of 20 records from 5 different years.
JanFebMarAprMayJunJulAugSepOctNovDec
Show over the bars
Recording in Union County · records of all species each week, 3,325 in all
Records per week from 28 records in 9 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
Records of Red-winged Blackbird in Union County each week, and records of all species
Week
Records of Red-winged Blackbird
Years recorded
Records of all species
Jan 4–10
0
0
24
Jan 11–17
0
0
2
Jan 18–24
0
0
6
Jan 25–31
0
0
3
Feb 1–7
0
0
0
Feb 8–14
0
0
15
Feb 15–21
0
0
2
Feb 22–28
1
1
3
Mar 1–7
0
0
7
Mar 8–14
0
0
3
Mar 15–21
0
0
25
Mar 22–28
0
0
19
Mar 29 – Apr 4
3
2
26
Apr 5–11
0
0
17
Apr 12–18
0
0
49
Apr 19–25
1
1
39
Apr 26 – May 2
5
2
114
May 3–9
1
1
66
May 10–16
0
0
71
May 17–23
0
0
164
May 24–30
4
3
193
May 31 – Jun 6
2
2
63
Jun 7–13
2
1
97
Jun 14–20
1
1
80
Jun 21–27
3
1
185
Jun 28 – Jul 4
3
2
109
Jul 5–11
1
1
156
Jul 12–18
1
1
205
Jul 19–25
0
0
120
Jul 26 – Aug 1
0
0
161
Aug 2–8
0
0
182
Aug 9–15
0
0
99
Aug 16–22
0
0
145
Aug 23–29
0
0
132
Aug 30 – Sep 5
0
0
131
Sep 6–12
0
0
54
Sep 13–19
0
0
117
Sep 20–26
0
0
78
Sep 27 – Oct 3
0
0
111
Oct 4–10
0
0
53
Oct 11–17
0
0
48
Oct 18–24
0
0
36
Oct 25–31
0
0
27
Nov 1–7
0
0
18
Nov 8–14
0
0
23
Nov 15–21
0
0
5
Nov 22–28
0
0
4
Nov 29 – Dec 5
0
0
2
Dec 6–12
0
0
1
Dec 13–19
0
0
8
Dec 20–26
0
0
8
Dec 27 – Jan 2
0
0
19
In Ohio
Early March to early October, middle week May 10–16
Middle week · May 10–16
This week · Nov 8–14
JanFebMarAprMayJunJulAugSepOctNovDec
Show over the bars
Recording in Ohio · records of all species each week, 1,691,199 in all
Records per week from 6,337 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 1,678 dates. Latest record: December 2025.
Show as a table
Records of Red-winged Blackbird in Ohio each week, and records of all species
Week
Records of Red-winged Blackbird
Years recorded
Records of all species
Jan 4–10
13
6
6,211
Jan 11–17
17
6
5,146
Jan 18–24
11
6
4,645
Jan 25–31
4
3
4,698
Feb 1–7
8
2
6,023
Feb 8–14
16
8
5,888
Feb 15–21
26
7
5,436
Feb 22–28
103
10
6,846
Mar 1–7
159
9
8,321
Mar 8–14
160
10
10,384
Mar 15–21
168
10
12,620
Mar 22–28
141
10
13,949
Mar 29 – Apr 4
183
10
19,661
Apr 5–11
251
10
26,860
Apr 12–18
361
10
39,925
Apr 19–25
327
10
41,623
Apr 26 – May 2
531
10
56,391
May 3–9
539
10
52,952
May 10–16
526
10
53,785
May 17–23
392
10
57,698
May 24–30
287
10
54,651
May 31 – Jun 6
235
10
53,099
Jun 7–13
182
10
53,700
Jun 14–20
198
9
56,625
Jun 21–27
208
10
55,361
Jun 28 – Jul 4
185
10
58,477
Jul 5–11
151
10
61,336
Jul 12–18
117
8
64,722
Jul 19–25
109
9
69,753
Jul 26 – Aug 1
88
9
59,416
Aug 2–8
51
9
59,712
Aug 9–15
33
8
55,994
Aug 16–22
43
9
54,328
Aug 23–29
26
9
51,772
Aug 30 – Sep 5
14
7
57,167
Sep 6–12
24
8
59,075
Sep 13–19
29
7
54,543
Sep 20–26
31
8
45,860
Sep 27 – Oct 3
31
7
43,180
Oct 4–10
32
10
37,841
Oct 11–17
60
10
30,824
Oct 18–24
69
8
21,156
Oct 25–31
64
10
19,021
Nov 1–7
49
8
14,172
Nov 8–14
30
8
12,621
Nov 15–21
14
7
7,965
Nov 22–28
4
2
8,136
Nov 29 – Dec 5
6
4
6,083
Dec 6–12
9
4
6,004
Dec 13–19
10
6
5,423
Dec 20–26
6
4
5,661
Dec 27 – Jan 2
6
2
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
Telling it apart
From what Ohio’s records show. Only what the records support is shown.
European StarlingSturnus vulgarisOften confused in Ohio: 15 identifications in Ohio named one where the other was meant
Song SparrowMelospiza melodiaOften confused in Ohio: 10 identifications in Ohio named one where the other was meant
Brown-headed CowbirdMolothrus ater236 identifications worldwide named one where the other was meant
Common GrackleQuiscalus quiscula231 identifications worldwide named one where the other was meant
American CrowCorvus brachyrhynchos102 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 each is reported
All recordsUsually early March to early October, middle week early May · 6,337 records
Reported as maleUsually early March to early November, middle week early May · 662 records
Not every photo is marked with a sex or a sign, so these show when people reported each, not when it happens.
Land cover where it is recorded
Land cover
Its recordsAll Ohio records
Developed
55%49%
Farmland
16%11%
Wetland
13%5%
Forest
11%31%
Open water
4%3%
Grassland and shrub
2%0.9%
Barren
0.9%0.6%
From 2,320 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)
Finer identifications
Some Ohio records of this species were identified to a subspecies:
Every one of these records counts toward the Red-winged Blackbird's season above.
Why some records go further than species
Many species vary from place to place. Groups of a species that look or sound a little different, and live in different areas, can be named as subspecies. Observers and experts only identify a record that far when it shows enough detail to tell them apart. Records without that detail count at the species level.
Names: Catalogue of Life.
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
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.
