Season shown in 2 of Ohio's 88 counties. Its mapped range covers 88. Explore Ohio
No result yet (0)
Within its mapped range (9)
Recorded, too few records for a result (55)
Recorded, season not shown (22)
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
Eastern Bluebird 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: summer
Ashland County
21 · Recorded, season not shown
Yes: summer
Ashtabula County
Recorded, too few records for a result
Yes: summer
Athens County
57 · Recorded, season not shown
Yes: year-round
Auglaize County
Recorded, too few records for a result
Yes: summer
Belmont County
Recorded, too few records for a result
Yes: summer
Brown County
Recorded, too few records for a result
Yes: year-round
Butler County
51 · Recorded, season not shown
Yes: year-round, summer
Carroll County
Recorded, too few records for a result
Yes: summer
Champaign County
Recorded, too few records for a result
Yes: summer
Clark County
Recorded, too few records for a result
Yes: summer
Clermont County
67 · Recorded, season not shown
Yes: year-round
Clinton County
No qualifying records yet
Yes: year-round
Columbiana County
Recorded, too few records for a result
Yes: summer
Coshocton County
Recorded, too few records for a result
Yes: summer
Crawford County
Recorded, too few records for a result
Yes: summer
Cuyahoga County
298 · Recorded, season not shown
Yes: summer
Darke County
20 · Recorded, season not shown
Yes: summer
Defiance County
Recorded, too few records for a result
Yes: summer
Delaware County
47 · Recorded, season not shown
Yes: summer
Erie County
26 · Recorded, season not shown
Yes: summer
Fairfield County
Recorded, too few records for a result
Yes: year-round, summer
Fayette County
No qualifying records yet
Yes: year-round
Franklin County
310 · Recorded, season not shown
Yes: summer
Fulton County
Recorded, too few records for a result
Yes: summer
Gallia County
Recorded, too few records for a result
Yes: year-round
Geauga County
44 · Recorded, season not shown
Yes: summer
Greene County
52 · Recorded, season not shown
Yes: year-round, summer
Guernsey County
Recorded, too few records for a result
Yes: summer
Hamilton County
130 · Season shown
Yes: year-round
Hancock County
Recorded, too few records for a result
Yes: summer
Hardin County
Recorded, too few records for a result
Yes: summer
Harrison County
Recorded, too few records for a result
Yes: summer
Henry County
Recorded, too few records for a result
Yes: summer
Highland County
Recorded, too few records for a result
Yes: year-round
Hocking County
Recorded, too few records for a result
Yes: year-round
Holmes County
Recorded, too few records for a result
Yes: summer
Huron County
Recorded, too few records for a result
Yes: summer
Jackson County
Recorded, too few records for a result
Yes: year-round
Jefferson County
No qualifying records yet
Yes: summer
Knox County
Recorded, too few records for a result
Yes: summer
Lake County
80 · Recorded, season not shown
Yes: summer
Lawrence County
No qualifying records yet
Yes: year-round
Licking County
46 · Recorded, season not shown
Yes: summer
Logan County
Recorded, too few records for a result
Yes: summer
Lorain County
104 · Recorded, season not shown
Yes: summer
Lucas County
80 · Recorded, season not shown
Yes: summer
Madison County
Recorded, too few records for a result
Yes: year-round, summer
Mahoning County
21 · Recorded, season not shown
Yes: summer
Marion County
Recorded, too few records for a result
Yes: summer
Medina County
75 · Recorded, season not shown
Yes: summer
Meigs County
No qualifying records yet
Yes: year-round
Mercer County
Recorded, too few records for a result
Yes: summer
Miami County
Recorded, too few records for a result
Yes: summer
Monroe County
Recorded, too few records for a result
Yes: year-round, summer
Montgomery County
86 · Recorded, season not shown
Yes: summer
Morgan County
No qualifying records yet
Yes: year-round
Morrow County
Recorded, too few records for a result
Yes: summer
Muskingum County
Recorded, too few records for a result
Yes: year-round, summer
Noble County
Recorded, too few records for a result
Yes: year-round, summer
Ottawa County
Recorded, too few records for a result
Yes: summer
Paulding County
No qualifying records yet
Yes: summer
Perry County
Recorded, too few records for a result
Yes: year-round, summer
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
45 · Recorded, season not shown
Yes: summer
Preble County
Recorded, too few records for a result
Yes: summer
Putnam County
No qualifying records yet
Yes: summer
Richland County
41 · Recorded, season not shown
Yes: summer
Ross County
Recorded, too few records for a result
Yes: year-round
Sandusky County
Recorded, too few records for a result
Yes: summer
Scioto County
Recorded, too few records for a result
Yes: year-round
Seneca County
Recorded, too few records for a result
Yes: summer
Shelby County
Recorded, too few records for a result
Yes: summer
Stark County
107 · Season shown
Yes: summer
Summit County
570 · Recorded, season not shown
Yes: summer
Trumbull County
Recorded, too few records for a result
Yes: summer
Tuscarawas County
Recorded, too few records for a result
Yes: summer
Union County
Recorded, too few records for a result
Yes: summer
Van Wert County
No qualifying records yet
Yes: summer
Vinton County
Recorded, too few records for a result
Yes: year-round
Warren County
Recorded, too few records for a result
Yes: year-round
Washington County
Recorded, too few records for a result
Yes: year-round
Wayne County
29 · Recorded, season not shown
Yes: summer
Williams County
Recorded, too few records for a result
Yes: summer
Wood County
Recorded, too few records for a result
Yes: summer
Wyandot County
Recorded, too few records for a result
Yes: summer
Season
When it is recorded
In Delaware County
Not enough evidence
Recorded in two separate seasons, so one season would put its middle week in the gap. Based on 47 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 Delaware County · records of all species each week, 21,087 in all
Records per week from 47 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 Eastern Bluebird in Delaware County each week, and records of all species
Week
Records of Eastern Bluebird
Years recorded
Records of all species
Jan 4–10
1
1
75
Jan 11–17
0
0
35
Jan 18–24
0
0
37
Jan 25–31
1
1
28
Feb 1–7
2
1
33
Feb 8–14
4
2
56
Feb 15–21
1
1
38
Feb 22–28
2
2
36
Mar 1–7
0
0
73
Mar 8–14
0
0
118
Mar 15–21
2
2
111
Mar 22–28
2
2
120
Mar 29 – Apr 4
0
0
208
Apr 5–11
3
3
304
Apr 12–18
0
0
810
Apr 19–25
3
2
622
Apr 26 – May 2
1
1
561
May 3–9
1
1
539
May 10–16
0
0
620
May 17–23
3
3
560
May 24–30
2
1
640
May 31 – Jun 6
0
0
751
Jun 7–13
1
1
746
Jun 14–20
1
1
593
Jun 21–27
0
0
623
Jun 28 – Jul 4
0
0
725
Jul 5–11
0
0
597
Jul 12–18
2
1
785
Jul 19–25
0
0
848
Jul 26 – Aug 1
1
1
646
Aug 2–8
0
0
665
Aug 9–15
1
1
612
Aug 16–22
0
0
684
Aug 23–29
0
0
775
Aug 30 – Sep 5
0
0
782
Sep 6–12
0
0
1,111
Sep 13–19
0
0
827
Sep 20–26
1
1
663
Sep 27 – Oct 3
0
0
686
Oct 4–10
1
1
576
Oct 11–17
0
0
411
Oct 18–24
0
0
350
Oct 25–31
1
1
245
Nov 1–7
3
3
181
Nov 8–14
0
0
112
Nov 15–21
1
1
101
Nov 22–28
3
2
93
Nov 29 – Dec 5
0
0
55
Dec 6–12
0
0
39
Dec 13–19
3
2
56
Dec 20–26
0
0
39
Dec 27 – Jan 2
0
0
86
In Ohio
Recorded all year
Recorded through most of the year, so there is no single season to show. Based on 3,903 records in 10 of the 10 years from 2016 to 2025, above the minimum of 20 records from 5 different years.
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 3,903 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
Records of Eastern Bluebird in Ohio each week, and records of all species
Week
Records of Eastern Bluebird
Years recorded
Records of all species
Jan 4–10
77
8
6,211
Jan 11–17
62
8
5,146
Jan 18–24
65
10
4,645
Jan 25–31
63
10
4,698
Feb 1–7
88
10
6,023
Feb 8–14
107
10
5,888
Feb 15–21
70
8
5,436
Feb 22–28
92
9
6,846
Mar 1–7
92
10
8,321
Mar 8–14
103
10
10,384
Mar 15–21
100
8
12,620
Mar 22–28
93
10
13,949
Mar 29 – Apr 4
107
10
19,661
Apr 5–11
127
10
26,860
Apr 12–18
143
10
39,925
Apr 19–25
141
10
41,623
Apr 26 – May 2
168
10
56,391
May 3–9
143
10
52,952
May 10–16
190
10
53,785
May 17–23
130
10
57,698
May 24–30
134
10
54,651
May 31 – Jun 6
107
10
53,099
Jun 7–13
73
10
53,700
Jun 14–20
82
10
56,625
Jun 21–27
67
10
55,361
Jun 28 – Jul 4
75
10
58,477
Jul 5–11
61
8
61,336
Jul 12–18
61
10
64,722
Jul 19–25
50
7
69,753
Jul 26 – Aug 1
61
9
59,416
Aug 2–8
49
10
59,712
Aug 9–15
34
8
55,994
Aug 16–22
32
7
54,328
Aug 23–29
28
6
51,772
Aug 30 – Sep 5
20
8
57,167
Sep 6–12
24
7
59,075
Sep 13–19
28
8
54,543
Sep 20–26
38
8
45,860
Sep 27 – Oct 3
32
9
43,180
Oct 4–10
39
10
37,841
Oct 11–17
48
9
30,824
Oct 18–24
55
10
21,156
Oct 25–31
43
9
19,021
Nov 1–7
50
9
14,172
Nov 8–14
55
9
12,621
Nov 15–21
43
8
7,965
Nov 22–28
51
9
8,136
Nov 29 – Dec 5
51
10
6,083
Dec 6–12
37
10
6,004
Dec 13–19
52
9
5,423
Dec 20–26
62
9
5,661
Dec 27 – Jan 2
100
9
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.
Blue JayCyanocitta cristata250 identifications worldwide named one where the other was meant
American RobinTurdus migratorius124 identifications worldwide named one where the other was meant
Indigo BuntingPasserina cyanea63 identifications worldwide named one where the other was meant
House FinchHaemorhous mexicanus51 identifications worldwide named one where the other was meant
Barn SwallowHirundo rustica40 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 recordsNo season shown · 3,903 records
Reported as maleUsually early November to mid-July, middle week late March · 202 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
54%49%
Forest
22%31%
Farmland
19%11%
Wetland
3%5%
Open water
0.8%3%
Grassland and shrub
0.6%0.9%
Barren
0.3%0.6%
From 1,543 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 Eastern Bluebird'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.
