BREEDING BIRD SPECIES TRENDS

Below are the BCN Survey population trends of breeding birds of the Chicago Region between 1999 and 2020. Click on a species' name below to view an individual species page with additional details. Hover over any of the fields of data to pull up a pop-up box with an explanation of the field. Grassland  |  Shrubland  |  Woodland  |  Wetland  |  Urban/Introduced

GRASSLANDS
Grasslands
Trend
% Error
Cons. Status
Cred.
Points
Records
Freq.
7.3%
+/-4.4%
--
Good
78
175
3%
5.5%
+/-0.8%
Lvl 3
Good
841
11724
34%
5.1%
+/-0.5%
--
Good
1488
13757
60%
4.4%
+/-3.0%
--
Good
155
319
6%
3.4%
+/-0.9%
Lvl 1
Good
652
5465
26%
2.6%
+/-1.1%
--
Good
810
3847
33%
2.3%
+/-0.9%
--
Good
994
9403
40%
1.9%
+/-2.1%
--
Good
327
1033
13%
1.8%
+/-0.5%
--
Good
1947
73222
79%
0.8%
+/-0.5%
--
Good
1675
17789
68%
0.7%
+/-1.6%
--
Good
413
1302
17%
0.3%
+/-1.0%
--
Good
838
2526
34%
0.2%
+/-7.6%
Lvl 2
Mod
32
51
1%
0.1%
+/-0.7%
Lvl 2
Good
1119
8592
45%
-0.5%
+/-1.1%
--
Good
715
2658
29%
-0.6%
+/-8.1%
Lvl 2
Mod
24
31
1%
-1.0%
+/-0.6%
Lvl 2
Good
991
12335
40%
-1.2%
+/-1.8%
--
Good
286
630
12%
-1.2%
+/-1.5%
Lvl 2
Good
394
1565
16%
-1.3%
+/-0.7%
--
Good
1288
8081
52%
-1.8%
+/-7.3%
Lvl 3
Mod
21
24
1%
-2.3%
+/-4.8%
Lvl 3
Good
54
85
2%
-2.7%
+/-0.9%
Lvl 2
Good
731
5238
30%
-2.9%
+/-0.7%
Lvl 1
Good
790
16571
32%
-3.0%
+/-5.6%
--
Mod
52
90
2%
-3.4%
+/-1.0%
--
Good
599
5180
24%
-10.4%
+/-5.2%
Lvl 2
Mod
48
65
2%
POORLY KNOWN TRENDS
--
+/-
--
Poor
14
24
1%
--
+/-
--
Poor
3
4
0%
--
+/-
Lvl 3
Poor
12
34
0%
--
+/-
Lvl 3
Poor
5
12
0%
--
+/-
--
Poor
18
42
1%
SHRUBLANDS
Shrublands
Trend
% Error
Cons. Status
Cred.
Points
Records
Freq.
6.4%
+/-2.9%
--
Good
157
260
6%
5.4%
+/-1.4%
--
Good
407
1527
17%
5.1%
+/-0.5%
--
Good
1488
13757
60%
4.4%
+/-1.0%
Lvl 3
Good
622
3038
25%
4.4%
+/-3.0%
--
Good
155
319
6%
3.7%
+/-0.6%
--
Good
1261
7386
51%
3.5%
+/-1.8%
--
Good
328
828
13%
2.1%
+/-4.7%
--
Good
53
95
2%
1.8%
+/-0.5%
--
Good
1947
73222
79%
1.6%
+/-1.2%
--
Good
585
2016
24%
1.3%
+/-5.6%
--
Mod
40
62
2%
0.8%
+/-0.6%
--
Good
1111
6907
45%
0.8%
+/-0.5%
--
Good
1675
17789
68%
0.5%
+/-3.0%
Lvl 3
Good
95
293
4%
0.4%
+/-0.5%
--
Good
1496
8461
61%
0.3%
+/-1.3%
Lvl 2
Good
536
1360
22%
0.3%
+/-1.0%
--
Good
838
2526
34%
0.2%
+/-7.6%
Lvl 2
Mod
32
51
1%
0.1%
+/-0.7%
Lvl 2
Good
1119
8592
45%
0.1%
+/-3.7%
Lvl 3
Good
69
144
3%
-0.3%
+/-1.3%
--
Good
665
3476
27%
-0.3%
+/-0.9%
--
Good
1108
8196
45%
-0.5%
+/-1.1%
--
Good
715
2658
29%
-0.6%
+/-8.1%
Lvl 2
Mod
24
31
1%
-0.7%
+/-3.0%
--
Good
152
247
6%
-0.8%
+/-0.9%
--
Good
679
4285
28%
-1.3%
+/-0.7%
--
Good
1288
8081
52%
-1.7%
+/-4.3%
Lvl 1
Good
58
66
2%
-3.0%
+/-0.6%
--
Good
1602
13791
65%
-3.4%
+/-0.9%
Lvl 2
Good
507
3045
21%
-8.1%
+/-5.5%
--
Mod
34
57
1%
POORLY KNOWN TRENDS
--
+/-
Lvl 3
Poor
15
22
1%
--
+/-
--
Poor
3
4
0%
--
+/-
--
Poor
18
42
1%
--
+/-
--
Poor
14
20
1%
--
+/-
Lvl 3
Poor
26
87
1%
--
+/-
--
Poor
19
23
1%
WOODLANDS
Woodlands
Trend
% Error
Cons. Status
Cred.
Points
Records
Freq.
29.5%
+/-9.8%
--
Mod
54
83
2%
16.9%
+/-8.2%
Lvl 3
Mod
34
65
1%
8.6%
+/-8.0%
--
Mod
31
49
1%
6.8%
+/-2.2%
Lvl 2
Good
313
874
13%
6.4%
+/-2.9%
--
Good
157
260
6%
6.3%
+/-0.8%
--
Good
904
4091
37%
6.1%
+/-0.9%
--
Good
676
3159
27%
5.6%
+/-1.4%
--
Good
514
1282
21%
5.4%
+/-1.4%
--
Good
407
1527
17%
5.3%
+/-2.7%
--
Good
166
293
7%
5.1%
+/-0.9%
--
Good
749
2498
30%
4.4%
+/-1.0%
Lvl 3
Good
622
3038
25%
4.3%
+/-2.5%
--
Good
199
351
8%
4.2%
+/-3.3%
--
Good
209
442
8%
4.1%
+/-0.7%
--
Good
806
4743
33%
3.7%
+/-0.6%
--
Good
1261
7386
51%
3.5%
+/-1.8%
--
Good
328
828
13%
3.3%
+/-2.9%
Lvl 1
Good
153
330
6%
2.9%
+/-1.3%
--
Good
420
1065
17%
2.8%
+/-0.6%
--
Good
1295
8135
53%
2.8%
+/-0.9%
--
Good
873
2984
35%
2.6%
+/-1.8%
--
Good
330
606
13%
2.2%
+/-4.3%
--
Good
64
99
3%
2.1%
+/-4.7%
--
Good
53
95
2%
2.1%
+/-1.5%
Lvl 2
Good
361
1029
15%
2.1%
+/-6.1%
--
Mod
36
47
1%
1.6%
+/-1.2%
--
Good
585
2016
24%
1.5%
+/-0.8%
Lvl 3
Good
974
2780
40%
1.4%
+/-2.8%
--
Good
165
233
7%
1.4%
+/-0.4%
--
Good
1970
19799
80%
1.2%
+/-0.8%
--
Good
866
2977
35%
1.2%
+/-3.2%
Lvl 3
Good
82
192
3%
0.9%
+/-0.7%
--
Good
1033
5037
42%
0.8%
+/-0.6%
--
Good
1111
6907
45%
0.8%
+/-2.6%
Lvl 2
Good
194
241
8%
0.7%
+/-1.6%
--
Good
413
1302
17%
0.4%
+/-0.5%
--
Good
1496
8461
61%
0.2%
+/-7.6%
Lvl 2
Mod
32
51
1%
0.1%
+/-1.6%
--
Good
456
902
19%
-0.3%
+/-3.4%
--
Good
80
127
3%
-0.3%
+/-1.3%
--
Good
665
3476
27%
-0.3%
+/-0.9%
--
Good
1108
8196
45%
-0.5%
+/-1.1%
--
Good
715
2658
29%
-0.5%
+/-0.7%
--
Good
762
3779
31%
-0.7%
+/-3.0%
--
Good
152
247
6%
-1.3%
+/-0.7%
--
Good
1288
8081
52%
-1.4%
+/-0.8%
--
Good
1004
5320
41%
-1.9%
+/-6.4%
Lvl 3
Mod
25
32
1%
-2.7%
+/-3.3%
--
Good
71
252
3%
-4.6%
+/-2.7%
Lvl 3
Good
113
222
5%
-6.1%
+/-3.8%
--
Good
63
97
3%
-7.6%
+/-1.2%
--
Good
585
1752
24%
-8.1%
+/-5.5%
--
Mod
34
57
1%
-10.8%
+/-6.3%
--
Mod
29
39
1%
POORLY KNOWN TRENDS
--
+/-
RRE
Poor
7
8
0%
--
+/-
--
Poor
18
23
1%
--
+/-
Lvl 3
Poor
11
16
0%
--
+/-
--
Poor
2
2
0%
--
+/-
Lvl 3
Poor
10
22
0%
--
+/-
--
Poor
7
13
0%
--
+/-
--
Poor
7
9
0%
--
+/-
Lvl 3
Poor
5
7
0%
--
+/-
Lvl 1
Poor
7
7
0%
--
+/-
--
Poor
2
2
0%
--
+/-
--
Poor
3
3
0%
--
+/-
--
Poor
10
11
0%
WETLANDS
Wetlands
Trend
% Error
Cons. Status
Cred.
Points
Records
Freq.
10.3%
+/-5.9%
Lvl 3
Mod
48
102
2%
9.1%
+/-2.4%
--
Good
181
748
7%
7.3%
+/-4.4%
--
Good
78
175
3%
6.7%
+/-2.4%
Lvl 3
Good
192
1077
8%
6.0%
+/-5.6%
--
Mod
73
210
3%
5.1%
+/-0.5%
--
Good
1488
13757
60%
5.1%
+/-2.6%
--
Good
233
953
9%
4.2%
+/-3.3%
--
Good
195
1292
8%
3.3%
+/-2.5%
Lvl 3
Good
285
1134
12%
2.9%
+/-1.4%
--
Good
574
1522
23%
2.9%
+/-6.2%
--
Mod
41
130
2%
2.7%
+/-4.5%
--
Good
50
163
2%
2.6%
+/-1.1%
--
Good
810
3847
33%
2.6%
+/-1.6%
--
Good
523
4520
21%
2.4%
+/-5.3%
Lvl 3
Mod
52
216
2%
2.3%
+/-0.9%
--
Good
994
9403
40%
2.2%
+/-4.3%
--
Good
64
99
3%
2.0%
+/-2.8%
--
Good
288
3737
12%
1.9%
+/-2.1%
--
Good
327
1033
13%
1.8%
+/-0.5%
--
Good
1947
73222
79%
1.2%
+/-2.6%
--
Good
150
338
6%
0.8%
+/-0.5%
--
Good
1675
17789
68%
-0.1%
+/-2.2%
--
Good
250
971
10%
-2.5%
+/-5.8%
--
Mod
38
113
2%
-10.5%
+/-5.7%
Lvl 2
Mod
34
70
1%
POORLY KNOWN TRENDS
--
+/-
Lvl 2
Poor
10
10
0%
--
+/-
--
Poor
30
73
1%
--
+/-
--
Poor
1
3
0%
--
+/-
--
Poor
15
106
1%
--
+/-
Lvl 3
Poor
4
6
0%
--
+/-
--
Poor
10
51
0%
--
+/-
Lvl 1
Poor
6
8
0%
--
+/-
--
Poor
17
29
1%
--
+/-
Lvl 3
Poor
19
36
1%
--
+/-
--
Poor
14
125
1%
--
+/-
--
Poor
3
4
0%
--
+/-
--
Poor
4
5
0%
--
+/-
Lvl 3
Poor
18
36
1%
--
+/-
RRE
Poor
1
1
0%
--
+/-
Lvl 2
Poor
12
18
0%
--
+/-
--
Poor
1
1
0%
URBAN & INTRODUCED
Urband and Introduced
Trend
% Error
Cons. Status
Cred.
Points
Records
Freq.
2.9%
+/-3.7%
--
Good
135
340
5%
2.8%
+/-1.9%
--
Good
621
6871
25%
0.5%
+/-5.5%
--
Mod
83
340
3%
-2.2%
+/-2.6%
--
Good
150
777
6%
-8.0%
+/-3.0%
--
Good
299
2198
12%
POORLY KNOWN TRENDS
--
+/-
--
Poor
17
34
1%
--
+/-
Lvl 3
Poor
5
12
0%