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Most Numerous Species Spring Count Home Summary by Year

Summary by Species

The list below summarizes the data for each species recorded on the count. Clicking the species' name will provide more detailed statistics, as well as a trend chart and tables of the actual count results for that species.
1. Snow Goose
DuPage County: Avg. of 1.7 in 3 counts.
Fermilab Site: 1 seen in 2000 only.
2. Canada Goose
DuPage County: Avg. of 1653.6 in 25 counts.
Fermilab Site: Avg. of 76.5 in 18 counts.
3. Mute Swan
DuPage County: Avg. of 2.7 in 19 counts.
Fermilab Site: Not seen.
4. Wood Duck
DuPage County: Avg. of 135.2 in 25 counts.
Fermilab Site: Avg. of 7.3 in 16 counts.
5. Gadwall
DuPage County: Avg. of 3.5 in 10 counts.
Fermilab Site: 2 seen in 2014 only.
6. American Wigeon
DuPage County: Avg. of 1.7 in 6 counts.
Fermilab Site: 2 seen in 2013 only.
7. American Black Duck
DuPage County: Avg. of 3.8 in 8 counts.
Fermilab Site: 1 seen in 2007 only.
8. Mallard
DuPage County: Avg. of 904.8 in 25 counts.
Fermilab Site: Avg. of 35.3 in 18 counts.
9. Blue-winged Teal
DuPage County: Avg. of 67.8 in 25 counts.
Fermilab Site: Avg. of 12.2 in 16 counts.
10. Cinnamon Teal
DuPage County: 1 seen in 1998 only.
Fermilab Site: Not seen.
11. Northern Shoveler
DuPage County: Avg. of 9.9 in 17 counts.
Fermilab Site: Avg. of 5.5 in 4 counts.
12. Green-winged Teal
DuPage County: Avg. of 3.8 in 18 counts.
Fermilab Site: Avg. of 2 in 3 counts.
13. Redhead
DuPage County: Avg. of 1.7 in 3 counts.
Fermilab Site: Not seen.
14. Ring-necked Duck
DuPage County: Avg. of 4.6 in 15 counts.
Fermilab Site: Not seen.
15. Lesser Scaup
DuPage County: Avg. of 3.9 in 12 counts.
Fermilab Site: Not seen.
16. Bufflehead
DuPage County: Avg. of 3.3 in 8 counts.
Fermilab Site: 5 seen in 2006 only.
17. Hooded Merganser
DuPage County: Avg. of 2.9 in 15 counts.
Fermilab Site: Avg. of 1.3 in 3 counts.
18. Common Merganser
DuPage County: Avg. of 1.7 in 3 counts.
Fermilab Site: Not seen.
19. Red-breasted Merganser
DuPage County: Avg. of 2.8 in 5 counts.
Fermilab Site: Not seen.
20. Ruddy Duck
DuPage County: Avg. of 7.9 in 18 counts.
Fermilab Site: Avg. of 1 in 3 counts.
21. Northern Bobwhite
DuPage County: Avg. of 1.5 in 2 counts.
Fermilab Site: 1 seen in 2004 only.
22. Ring-necked Pheasant
DuPage County: Avg. of 34.9 in 22 counts.
Fermilab Site: Avg. of 1.6 in 5 counts.
23. Wild Turkey
DuPage County: Avg. of 4.9 in 17 counts.
Fermilab Site: 4 seen in 2002 only.
24. Common Loon
DuPage County: Avg. of 1.6 in 10 counts.
Fermilab Site: Not seen.
25. Pied-billed Grebe
DuPage County: Avg. of 17.8 in 25 counts.
Fermilab Site: Avg. of 1.7 in 10 counts.
26. Horned Grebe
DuPage County: Avg. of 2 in 3 counts.
Fermilab Site: 1 seen in 2000 only.
27. Eared Grebe
DuPage County: 1 seen in 1991 only.
Fermilab Site: Not seen.
28. Wood Stork
DuPage County: 1 seen in 2010 only.
Fermilab Site: Not seen.
29. Double-crested Cormorant
DuPage County: Avg. of 116 in 25 counts.
Fermilab Site: Avg. of 18.2 in 18 counts.
30. American White Pelican
DuPage County: Avg. of 5.5 in 2 counts.
Fermilab Site: Not seen.
31. American Bittern
DuPage County: Avg. of 2.3 in 16 counts.
Fermilab Site: Not seen.
32. Least Bittern
DuPage County: 1 seen in 1992 only.
Fermilab Site: Not seen.
33. Great Blue Heron
DuPage County: Avg. of 225.1 in 25 counts.
Fermilab Site: Avg. of 12.9 in 18 counts.
34. Great Egret
DuPage County: Avg. of 56.1 in 25 counts.
Fermilab Site: Avg. of 3.2 in 17 counts.
35. Snowy Egret
DuPage County: Avg. of 1 in 2 counts.
Fermilab Site: Not seen.
36. Little Blue Heron
DuPage County: 1 seen in 2014 only.
Fermilab Site: Not seen.
37. Cattle Egret
DuPage County: Avg. of 3.3 in 7 counts.
Fermilab Site: 1 seen in 1999 only.
38. Green Heron
DuPage County: Avg. of 32 in 25 counts.
Fermilab Site: Avg. of 2.3 in 13 counts.
39. Black-crowned Night-Heron
DuPage County: Avg. of 10 in 25 counts.
Fermilab Site: Avg. of 1.5 in 4 counts.
40. Yellow-crowned Night-Heron
DuPage County: 1 seen in 1997 only.
Fermilab Site: Not seen.
41. White-faced Ibis
DuPage County: Avg. of 1 in 2 counts.
Fermilab Site: Not seen.
42. Turkey Vulture
DuPage County: Avg. of 32.4 in 25 counts.
Fermilab Site: Avg. of 3.2 in 13 counts.
43. Osprey
DuPage County: Avg. of 4.1 in 17 counts.
Fermilab Site: Avg. of 2.3 in 6 counts.
44. Golden Eagle
DuPage County: 1 seen in 2014 only.
Fermilab Site: Not seen.
45. Mississippi Kite
DuPage County: Avg. of 1 in 3 counts.
Fermilab Site: Not seen.
46. Northern Harrier
DuPage County: Avg. of 2.6 in 19 counts.
Fermilab Site: Avg. of 1.7 in 7 counts.
47. Sharp-shinned Hawk
DuPage County: Avg. of 6.4 in 25 counts.
Fermilab Site: Avg. of 1 in 2 counts.
48. Cooper's Hawk
DuPage County: Avg. of 27 in 25 counts.
Fermilab Site: Avg. of 1.8 in 12 counts.
49. Northern Goshawk
DuPage County: 1 seen in 2000 only.
Fermilab Site: Not seen.
50. Bald Eagle
DuPage County: Avg. of 1.2 in 6 counts.
Fermilab Site: 1 seen in 2013 only.
51. Red-shouldered Hawk
DuPage County: Avg. of 2 in 17 counts.
Fermilab Site: Not seen.
52. Broad-winged Hawk
DuPage County: Avg. of 9 in 25 counts.
Fermilab Site: Not seen.
53. Red-tailed Hawk
DuPage County: Avg. of 93.9 in 25 counts.
Fermilab Site: Avg. of 7.6 in 17 counts.
54. Rough-legged Hawk
DuPage County: Avg. of 1.7 in 3 counts.
Fermilab Site: Not seen.
55. Yellow Rail
DuPage County: Avg. of 1 in 2 counts.
Fermilab Site: Not seen.
56. Black Rail
DuPage County: 1 seen in 2010 only.
Fermilab Site: Not seen.
57. King Rail
DuPage County: 1 seen in 2005 only.
Fermilab Site: Not seen.
58. Virginia Rail
DuPage County: Avg. of 5.3 in 24 counts.
Fermilab Site: Avg. of 1.4 in 5 counts.
59. Sora
DuPage County: Avg. of 42.7 in 25 counts.
Fermilab Site: Avg. of 3.8 in 15 counts.
60. Common Gallinule
DuPage County: Avg. of 2.4 in 9 counts.
Fermilab Site: Not seen.
61. American Coot
DuPage County: Avg. of 72.4 in 25 counts.
Fermilab Site: Avg. of 4 in 5 counts.
62. Sandhill Crane
DuPage County: Avg. of 4.6 in 22 counts.
Fermilab Site: Avg. of 1.7 in 3 counts.
63. Semipalmated Plover
DuPage County: Avg. of 12 in 13 counts.
Fermilab Site: Avg. of 8 in 3 counts.
64. Killdeer
DuPage County: Avg. of 104.3 in 25 counts.
Fermilab Site: Avg. of 8.5 in 18 counts.
65. American Avocet
DuPage County: 2 seen in 1997 only.
Fermilab Site: Not seen.
66. Spotted Sandpiper
DuPage County: Avg. of 47.1 in 25 counts.
Fermilab Site: Avg. of 3.4 in 14 counts.
67. Solitary Sandpiper
DuPage County: Avg. of 69.9 in 25 counts.
Fermilab Site: Avg. of 7.4 in 16 counts.
68. Greater Yellowlegs
DuPage County: Avg. of 11.1 in 21 counts.
Fermilab Site: Avg. of 2.8 in 11 counts.
69. Lesser Yellowlegs
DuPage County: Avg. of 52.5 in 25 counts.
Fermilab Site: Avg. of 21.6 in 15 counts.
70. Upland Sandpiper
DuPage County: Avg. of 4 in 4 counts.
Fermilab Site: 2 seen in 2001 only.
71. Semipalmated Sandpiper
DuPage County: Avg. of 8.8 in 17 counts.
Fermilab Site: Avg. of 4 in 2 counts.
72. Least Sandpiper
DuPage County: Avg. of 55.3 in 24 counts.
Fermilab Site: Avg. of 31.3 in 6 counts.
73. White-rumped Sandpiper
DuPage County: Avg. of 1.5 in 2 counts.
Fermilab Site: 2 seen in 2014 only.
74. Pectoral Sandpiper
DuPage County: Avg. of 15.9 in 22 counts.
Fermilab Site: Avg. of 3.9 in 8 counts.
75. Dunlin
DuPage County: Avg. of 2.8 in 6 counts.
Fermilab Site: 5 seen in 2014 only.
76. Stilt Sandpiper
DuPage County: 1 seen in 2013 only.
Fermilab Site: 1 seen in 2013 only.
77. Short-billed Dowitcher
DuPage County: Avg. of 2.6 in 7 counts.
Fermilab Site: 1 seen in 1999 only.
78. Long-billed Dowitcher
DuPage County: 1 seen in 1990 only.
Fermilab Site: Not seen.
79. Wilson's Snipe
DuPage County: Avg. of 15.3 in 23 counts.
Fermilab Site: Avg. of 7.3 in 7 counts.
80. American Woodcock
DuPage County: Avg. of 8.7 in 21 counts.
Fermilab Site: Avg. of 3.3 in 3 counts.
81. Wilson's Phalarope
DuPage County: Avg. of 1.6 in 8 counts.
Fermilab Site: Avg. of 2.7 in 3 counts.
82. Bonaparte's Gull
DuPage County: Avg. of 4 in 5 counts.
Fermilab Site: Not seen.
83. Ring-billed Gull
DuPage County: Avg. of 208.4 in 25 counts.
Fermilab Site: Avg. of 4.1 in 15 counts.
84. American Herring Gull
DuPage County: Avg. of 29.1 in 24 counts.
Fermilab Site: Not seen.
85. Caspian Tern
DuPage County: Avg. of 12.9 in 12 counts.
Fermilab Site: Avg. of 3 in 3 counts.
86. Black Tern
DuPage County: Avg. of 1.8 in 10 counts.
Fermilab Site: 3 seen in 2009 only.
87. Common Tern
DuPage County: 5 seen in 1994 only.
Fermilab Site: Not seen.
88. Forster's Tern
DuPage County: Avg. of 3.9 in 8 counts.
Fermilab Site: Not seen.
89. Rock Pigeon
DuPage County: Avg. of 143.5 in 25 counts.
Fermilab Site: Avg. of 6.4 in 16 counts.
90. Eurasian Collared-Dove
DuPage County: 2 seen in 2003 only.
Fermilab Site: Not seen.
91. Mourning Dove
DuPage County: Avg. of 353.2 in 25 counts.
Fermilab Site: Avg. of 9.9 in 18 counts.
92. Yellow-billed Cuckoo
DuPage County: Avg. of 2.3 in 15 counts.
Fermilab Site: 1 seen in 2010 only.
93. Black-billed Cuckoo
DuPage County: Avg. of 3.2 in 16 counts.
Fermilab Site: Not seen.
94. Eastern Screech-Owl
DuPage County: Avg. of 3.5 in 20 counts.
Fermilab Site: 1 seen in 2011 only.
95. Great Horned Owl
DuPage County: Avg. of 17.2 in 25 counts.
Fermilab Site: Avg. of 2.8 in 13 counts.
96. Barred Owl
DuPage County: Avg. of 2 in 14 counts.
Fermilab Site: Avg. of 1 in 3 counts.
97. Common Nighthawk
DuPage County: Avg. of 12.3 in 12 counts.
Fermilab Site: Avg. of 1.3 in 3 counts.
98. Whip-poor-will
DuPage County: Avg. of 1.1 in 7 counts.
Fermilab Site: Not seen.
99. Chimney Swift
DuPage County: Avg. of 155.4 in 25 counts.
Fermilab Site: Avg. of 3.3 in 11 counts.
100. Ruby-throated Hummingbird
DuPage County: Avg. of 7.2 in 19 counts.
Fermilab Site: 2 seen in 2009 only.
101. Belted Kingfisher
DuPage County: Avg. of 14 in 25 counts.
Fermilab Site: Avg. of 2 in 5 counts.
102. Red-headed Woodpecker
DuPage County: Avg. of 20.2 in 25 counts.
Fermilab Site: Avg. of 1.7 in 6 counts.
103. Red-bellied Woodpecker
DuPage County: Avg. of 169.2 in 25 counts.
Fermilab Site: Avg. of 4.8 in 18 counts.
104. Yellow-bellied Sapsucker
DuPage County: Avg. of 2.3 in 15 counts.
Fermilab Site: Not seen.
105. Downy Woodpecker
DuPage County: Avg. of 166 in 25 counts.
Fermilab Site: Avg. of 6.1 in 17 counts.
106. Hairy Woodpecker
DuPage County: Avg. of 31.4 in 25 counts.
Fermilab Site: Avg. of 1.9 in 14 counts.
107. Northern Flicker
DuPage County: Avg. of 187.1 in 25 counts.
Fermilab Site: Avg. of 7.8 in 18 counts.
108. Pileated Woodpecker
DuPage County: Avg. of 2.5 in 6 counts.
Fermilab Site: Not seen.
109. American Kestrel
DuPage County: Avg. of 18 in 25 counts.
Fermilab Site: Avg. of 1.8 in 9 counts.
110. Merlin
DuPage County: Avg. of 1 in 4 counts.
Fermilab Site: Not seen.
111. Peregrine Falcon
DuPage County: Avg. of 1.4 in 11 counts.
Fermilab Site: 2 seen in 2007 only.
112. Monk Parakeet
DuPage County: Avg. of 8.9 in 16 counts.
Fermilab Site: Not seen.
113. Olive-sided Flycatcher
DuPage County: Avg. of 1.8 in 10 counts.
Fermilab Site: Avg. of 1.5 in 2 counts.
114. Eastern Wood-Pewee
DuPage County: Avg. of 10.7 in 23 counts.
Fermilab Site: Avg. of 1.7 in 7 counts.
115. Yellow-bellied Flycatcher
DuPage County: Avg. of 1 in 2 counts.
Fermilab Site: Not seen.
116. Acadian Flycatcher
DuPage County: Avg. of 1.3 in 3 counts.
Fermilab Site: Not seen.
117. Alder Flycatcher
DuPage County: Avg. of 1 in 3 counts.
Fermilab Site: Not seen.
118. Willow Flycatcher
DuPage County: Avg. of 2.6 in 19 counts.
Fermilab Site: Avg. of 1 in 3 counts.
119. Least Flycatcher
DuPage County: Avg. of 19.6 in 24 counts.
Fermilab Site: Avg. of 1.8 in 12 counts.
120. Eastern Phoebe
DuPage County: Avg. of 34.6 in 25 counts.
Fermilab Site: Avg. of 2.6 in 14 counts.
121. Great Crested Flycatcher
DuPage County: Avg. of 55.4 in 25 counts.
Fermilab Site: Avg. of 2 in 16 counts.
122. Western Kingbird
DuPage County: 1 seen in 2010 only.
Fermilab Site: Not seen.
123. Eastern Kingbird
DuPage County: Avg. of 72 in 25 counts.
Fermilab Site: Avg. of 5.3 in 16 counts.
124. Loggerhead Shrike
DuPage County: 1 seen in 1990 only.
Fermilab Site: Not seen.
125. White-eyed Vireo
DuPage County: Avg. of 4.4 in 23 counts.
Fermilab Site: Not seen.
126. Bell's Vireo
DuPage County: Avg. of 2 in 5 counts.
Fermilab Site: 1 seen in 2004 only.
127. Yellow-throated Vireo
DuPage County: Avg. of 18.2 in 25 counts.
Fermilab Site: Avg. of 1.4 in 7 counts.
128. Blue-headed Vireo
DuPage County: Avg. of 18.1 in 25 counts.
Fermilab Site: Avg. of 2.3 in 7 counts.
129. Warbling Vireo
DuPage County: Avg. of 81.6 in 25 counts.
Fermilab Site: Avg. of 2.9 in 11 counts.
130. Philadelphia Vireo
DuPage County: Avg. of 4.3 in 20 counts.
Fermilab Site: 1 seen in 2002 only.
131. Red-eyed Vireo
DuPage County: Avg. of 44.7 in 24 counts.
Fermilab Site: Avg. of 2.6 in 11 counts.
132. Blue Jay
DuPage County: Avg. of 529.2 in 25 counts.
Fermilab Site: Avg. of 15.8 in 18 counts.
133. American Crow
DuPage County: Avg. of 508.8 in 25 counts.
Fermilab Site: Avg. of 11.2 in 16 counts.
134. Horned Lark
DuPage County: Avg. of 5.2 in 25 counts.
Fermilab Site: Avg. of 2.5 in 16 counts.
135. Northern Rough-winged Swallow
DuPage County: Avg. of 137.8 in 25 counts.
Fermilab Site: Avg. of 9.9 in 17 counts.
136. Purple Martin
DuPage County: Avg. of 14 in 22 counts.
Fermilab Site: 1 seen in 2009 only.
137. Tree Swallow
DuPage County: Avg. of 593 in 25 counts.
Fermilab Site: Avg. of 41.6 in 18 counts.
138. Bank Swallow
DuPage County: Avg. of 17.3 in 25 counts.
Fermilab Site: Avg. of 3.7 in 11 counts.
139. Barn Swallow
DuPage County: Avg. of 393 in 25 counts.
Fermilab Site: Avg. of 17.5 in 17 counts.
140. Cliff Swallow
DuPage County: Avg. of 6.6 in 17 counts.
Fermilab Site: Avg. of 1.5 in 4 counts.
141. Black-capped Chickadee
DuPage County: Avg. of 400 in 25 counts.
Fermilab Site: Avg. of 13.5 in 17 counts.
142. Tufted Titmouse
DuPage County: Avg. of 4.1 in 21 counts.
Fermilab Site: Not seen.
143. Red-breasted Nuthatch
DuPage County: Avg. of 4.4 in 22 counts.
Fermilab Site: Avg. of 1.5 in 2 counts.
144. White-breasted Nuthatch
DuPage County: Avg. of 87.3 in 25 counts.
Fermilab Site: Avg. of 3.9 in 17 counts.
145. Brown Creeper
DuPage County: Avg. of 3.5 in 20 counts.
Fermilab Site: Not seen.
146. House Wren
DuPage County: Avg. of 252.4 in 25 counts.
Fermilab Site: Avg. of 10.9 in 18 counts.
147. Winter Wren
DuPage County: Avg. of 1.6 in 8 counts.
Fermilab Site: Not seen.
148. Sedge Wren
DuPage County: Avg. of 9.5 in 22 counts.
Fermilab Site: Avg. of 4 in 9 counts.
149. Marsh Wren
DuPage County: Avg. of 19.3 in 24 counts.
Fermilab Site: Avg. of 2.7 in 10 counts.
150. Carolina Wren
DuPage County: Avg. of 2.3 in 16 counts.
Fermilab Site: Not seen.
151. Blue-gray Gnatcatcher
DuPage County: Avg. of 219.6 in 25 counts.
Fermilab Site: Avg. of 9.6 in 18 counts.
152. Golden-crowned Kinglet
DuPage County: Avg. of 1.8 in 5 counts.
Fermilab Site: Not seen.
153. Ruby-crowned Kinglet
DuPage County: Avg. of 73.8 in 25 counts.
Fermilab Site: Avg. of 2.7 in 15 counts.
154. Eastern Bluebird
DuPage County: Avg. of 79.9 in 25 counts.
Fermilab Site: Avg. of 5.5 in 17 counts.
155. Veery
DuPage County: Avg. of 16.3 in 25 counts.
Fermilab Site: Avg. of 3 in 10 counts.
156. Gray-cheeked Thrush
DuPage County: Avg. of 7.3 in 23 counts.
Fermilab Site: Avg. of 1.8 in 9 counts.
157. Swainson's Thrush
DuPage County: Avg. of 34.9 in 25 counts.
Fermilab Site: Avg. of 3.3 in 11 counts.
158. Hermit Thrush
DuPage County: Avg. of 9 in 24 counts.
Fermilab Site: 1 seen in 2007 only.
159. Wood Thrush
DuPage County: Avg. of 35.9 in 25 counts.
Fermilab Site: Avg. of 1.5 in 8 counts.
160. American Robin
DuPage County: Avg. of 1963.6 in 25 counts.
Fermilab Site: Avg. of 48.7 in 18 counts.
161. Gray Catbird
DuPage County: Avg. of 284.7 in 25 counts.
Fermilab Site: Avg. of 8.3 in 18 counts.
162. Northern Mockingbird
DuPage County: Avg. of 1.6 in 12 counts.
Fermilab Site: 1 seen in 2004 only.
163. Brown Thrasher
DuPage County: Avg. of 72.7 in 25 counts.
Fermilab Site: Avg. of 3.8 in 15 counts.
164. European Starling
DuPage County: Avg. of 1183.8 in 25 counts.
Fermilab Site: Avg. of 24.5 in 18 counts.
165. American Pipit
DuPage County: Avg. of 3 in 7 counts.
Fermilab Site: 4 seen in 2007 only.
166. Cedar Waxwing
DuPage County: Avg. of 141.3 in 24 counts.
Fermilab Site: Avg. of 3 in 5 counts.
167. Ovenbird
DuPage County: Avg. of 42 in 25 counts.
Fermilab Site: Avg. of 3.9 in 10 counts.
168. Worm-eating Warbler
DuPage County: Avg. of 1.3 in 7 counts.
Fermilab Site: Not seen.
169. Louisiana Waterthrush
DuPage County: Avg. of 2.6 in 20 counts.
Fermilab Site: Avg. of 1 in 3 counts.
170. Northern Waterthrush
DuPage County: Avg. of 62.3 in 25 counts.
Fermilab Site: Avg. of 4.9 in 14 counts.
171. Blue-winged Warbler
DuPage County: Avg. of 21.8 in 25 counts.
Fermilab Site: Avg. of 1.4 in 5 counts.
172. Golden-winged Warbler
DuPage County: Avg. of 16.2 in 23 counts.
Fermilab Site: Avg. of 2 in 5 counts.
173. Black-and-white Warbler
DuPage County: Avg. of 66 in 25 counts.
Fermilab Site: Avg. of 3.3 in 14 counts.
174. Prothonotary Warbler
DuPage County: Avg. of 4.9 in 21 counts.
Fermilab Site: Not seen.
175. Tennessee Warbler
DuPage County: Avg. of 119.4 in 25 counts.
Fermilab Site: Avg. of 3.5 in 12 counts.
176. Orange-crowned Warbler
DuPage County: Avg. of 8.2 in 24 counts.
Fermilab Site: Avg. of 1.2 in 6 counts.
177. Nashville Warbler
DuPage County: Avg. of 129.4 in 25 counts.
Fermilab Site: Avg. of 3.8 in 17 counts.
178. Connecticut Warbler
DuPage County: Avg. of 1.2 in 11 counts.
Fermilab Site: Not seen.
179. Mourning Warbler
DuPage County: Avg. of 2.3 in 11 counts.
Fermilab Site: Not seen.
180. Kentucky Warbler
DuPage County: Avg. of 1.6 in 7 counts.
Fermilab Site: Not seen.
181. Common Yellowthroat
DuPage County: Avg. of 200 in 25 counts.
Fermilab Site: Avg. of 13.3 in 18 counts.
182. Hooded Warbler
DuPage County: Avg. of 2.2 in 17 counts.
Fermilab Site: Avg. of 1 in 2 counts.
183. American Redstart
DuPage County: Avg. of 47.8 in 25 counts.
Fermilab Site: Avg. of 4.7 in 10 counts.
184. Cape May Warbler
DuPage County: Avg. of 16.8 in 23 counts.
Fermilab Site: Avg. of 2.2 in 5 counts.
185. Cerulean Warbler
DuPage County: Avg. of 1.9 in 15 counts.
Fermilab Site: Not seen.
186. Northern Parula
DuPage County: Avg. of 19.4 in 25 counts.
Fermilab Site: Avg. of 1.5 in 6 counts.
187. Magnolia Warbler
DuPage County: Avg. of 30.8 in 25 counts.
Fermilab Site: Avg. of 3.1 in 9 counts.
188. Bay-breasted Warbler
DuPage County: Avg. of 12.1 in 23 counts.
Fermilab Site: Avg. of 2 in 3 counts.
189. Blackburnian Warbler
DuPage County: Avg. of 19.7 in 23 counts.
Fermilab Site: Avg. of 2.1 in 8 counts.
190. Yellow Warbler
DuPage County: Avg. of 317.5 in 25 counts.
Fermilab Site: Avg. of 10.4 in 17 counts.
191. Chestnut-sided Warbler
DuPage County: Avg. of 40.6 in 24 counts.
Fermilab Site: Avg. of 2.3 in 8 counts.
192. Blackpoll Warbler
DuPage County: Avg. of 15.2 in 23 counts.
Fermilab Site: Avg. of 1.2 in 5 counts.
193. Black-throated Blue Warbler
DuPage County: Avg. of 4.1 in 17 counts.
Fermilab Site: 1 seen in 2009 only.
194. Palm Warbler
DuPage County: Avg. of 663.5 in 25 counts.
Fermilab Site: Avg. of 36.7 in 18 counts.
195. Pine Warbler
DuPage County: Avg. of 7 in 24 counts.
Fermilab Site: Not seen.
196. Yellow-rumped Warbler
DuPage County: Avg. of 905 in 25 counts.
Fermilab Site: Avg. of 37.4 in 18 counts.
197. Yellow-throated Warbler
DuPage County: Avg. of 3.4 in 14 counts.
Fermilab Site: Not seen.
198. Prairie Warbler
DuPage County: Avg. of 1.3 in 6 counts.
Fermilab Site: Not seen.
199. Black-throated Green Warbler
DuPage County: Avg. of 90 in 25 counts.
Fermilab Site: Avg. of 4.3 in 16 counts.
200. Canada Warbler
DuPage County: Avg. of 4.1 in 13 counts.
Fermilab Site: 1 seen in 2003 only.
201. Wilson's Warbler
DuPage County: Avg. of 6.5 in 22 counts.
Fermilab Site: 1 seen in 2014 only.
202. Yellow-breasted Chat
DuPage County: Avg. of 4.1 in 16 counts.
Fermilab Site: Not seen.
203. Eastern Towhee
DuPage County: Avg. of 99 in 25 counts.
Fermilab Site: Avg. of 3.7 in 14 counts.
204. American Tree Sparrow
DuPage County: Avg. of 2.7 in 3 counts.
Fermilab Site: Not seen.
205. Chipping Sparrow
DuPage County: Avg. of 132.4 in 25 counts.
Fermilab Site: Avg. of 4.8 in 17 counts.
206. Clay-colored Sparrow
DuPage County: Avg. of 3.1 in 16 counts.
Fermilab Site: Avg. of 1.5 in 4 counts.
207. Field Sparrow
DuPage County: Avg. of 169.6 in 25 counts.
Fermilab Site: Avg. of 10.3 in 18 counts.
208. Vesper Sparrow
DuPage County: Avg. of 3.6 in 22 counts.
Fermilab Site: Avg. of 2 in 14 counts.
209. Lark Sparrow
DuPage County: 2 seen in 1996 only.
Fermilab Site: Not seen.
210. Savannah Sparrow
DuPage County: Avg. of 105.8 in 25 counts.
Fermilab Site: Avg. of 11.9 in 17 counts.
211. Grasshopper Sparrow
DuPage County: Avg. of 5.8 in 25 counts.
Fermilab Site: Avg. of 2 in 6 counts.
212. Henslow's Sparrow
DuPage County: Avg. of 12 in 12 counts.
Fermilab Site: Avg. of 2.4 in 5 counts.
213. Le Conte's Sparrow
DuPage County: Avg. of 1.5 in 2 counts.
Fermilab Site: Not seen.
214. Fox Sparrow
DuPage County: Avg. of 1 in 8 counts.
Fermilab Site: Not seen.
215. Song Sparrow
DuPage County: Avg. of 554.8 in 25 counts.
Fermilab Site: Avg. of 17.6 in 18 counts.
216. Lincoln's Sparrow
DuPage County: Avg. of 14.4 in 25 counts.
Fermilab Site: Avg. of 2.2 in 14 counts.
217. Swamp Sparrow
DuPage County: Avg. of 112.6 in 25 counts.
Fermilab Site: Avg. of 11.4 in 17 counts.
218. White-throated Sparrow
DuPage County: Avg. of 305.2 in 25 counts.
Fermilab Site: Avg. of 21.9 in 17 counts.
219. Harris's Sparrow
DuPage County: 1 seen in 1991 only.
Fermilab Site: Not seen.
220. White-crowned Sparrow
DuPage County: Avg. of 131 in 25 counts.
Fermilab Site: Avg. of 13.3 in 16 counts.
221. Dark-eyed Junco
DuPage County: Avg. of 1.5 in 13 counts.
Fermilab Site: Not seen.
222. Summer Tanager
DuPage County: Avg. of 3.1 in 18 counts.
Fermilab Site: Not seen.
223. Scarlet Tanager
DuPage County: Avg. of 53.3 in 24 counts.
Fermilab Site: Avg. of 2.9 in 11 counts.
224. Northern Cardinal
DuPage County: Avg. of 594.8 in 25 counts.
Fermilab Site: Avg. of 10.9 in 18 counts.
225. Rose-breasted Grosbeak
DuPage County: Avg. of 145.1 in 25 counts.
Fermilab Site: Avg. of 4.1 in 16 counts.
226. Blue Grosbeak
DuPage County: Avg. of 1.5 in 4 counts.
Fermilab Site: Not seen.
227. Indigo Bunting
DuPage County: Avg. of 154.4 in 25 counts.
Fermilab Site: Avg. of 5.4 in 15 counts.
228. Dickcissel
DuPage County: Avg. of 2.5 in 4 counts.
Fermilab Site: 1 seen in 2014 only.
229. Bobolink
DuPage County: Avg. of 102.7 in 25 counts.
Fermilab Site: Avg. of 17.1 in 17 counts.
230. Red-winged Blackbird
DuPage County: Avg. of 3523.5 in 25 counts.
Fermilab Site: Avg. of 95.8 in 18 counts.
231. Eastern Meadowlark
DuPage County: Avg. of 162.1 in 25 counts.
Fermilab Site: Avg. of 18.5 in 18 counts.
232. Western Meadowlark
DuPage County: Avg. of 1 in 2 counts.
Fermilab Site: Not seen.
233. Yellow-headed Blackbird
DuPage County: Avg. of 4.5 in 20 counts.
Fermilab Site: Not seen.
234. Rusty Blackbird
DuPage County: Avg. of 1 in 3 counts.
Fermilab Site: Not seen.
235. Brewer's Blackbird
DuPage County: Avg. of 2.5 in 2 counts.
Fermilab Site: Not seen.
236. Common Grackle
DuPage County: Avg. of 877 in 25 counts.
Fermilab Site: Avg. of 9.1 in 18 counts.
237. Brown-headed Cowbird
DuPage County: Avg. of 569.4 in 25 counts.
Fermilab Site: Avg. of 24.9 in 18 counts.
238. Orchard Oriole
DuPage County: Avg. of 27.1 in 24 counts.
Fermilab Site: Avg. of 1.2 in 5 counts.
239. Baltimore Oriole
DuPage County: Avg. of 263.4 in 25 counts.
Fermilab Site: Avg. of 5.4 in 17 counts.
240. Purple Finch
DuPage County: Avg. of 6.1 in 21 counts.
Fermilab Site: Not seen.
241. House Finch
DuPage County: Avg. of 104.2 in 25 counts.
Fermilab Site: Avg. of 4.2 in 17 counts.
242. Pine Siskin
DuPage County: Avg. of 20.2 in 16 counts.
Fermilab Site: Not seen.
243. American Goldfinch
DuPage County: Avg. of 951.2 in 25 counts.
Fermilab Site: Avg. of 41.2 in 18 counts.
244. House Sparrow
DuPage County: Avg. of 440 in 25 counts.
Fermilab Site: Avg. of 10.3 in 17 counts.
245. Individual Count
DuPage County: Avg. of 25480.9 in 25 counts.
Fermilab Site: Avg. of 1007.6 in 18 counts.
246. Species Count
DuPage County: Avg. of 166.7 in 25 counts.
Fermilab Site: Avg. of 91.4 in 18 counts.

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