Butterfly sighting

Mike Reese

Location: John Muir Hiking-Biking Trails
Walworth County

These sightings are submitted by butterfly enthusiasts across Wisconsin.

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2023 sightings

Mar 1

2022 sightings

Mar 12
Apr 74
May 285
Jun 536
Jul 636

Aug 490
Sep 258
Oct 151
Nov 32

2021 sightings

Mar 30
Apr 157
May 258
Jun 491
Jul 498

Aug 322
Sep 154
Oct 99
Nov 17
Dec 1

2020 sightings

Mar 12
Apr 86
May 283
Jun 501
Jul 521

Aug 397
Sep 155
Oct 61
Nov 25
Dec 1

2019 sightings

Mar 5
Apr 130
May 189
Jun 324
Jul 425

Aug 437
Sep 222
Oct 85

2018 sightings

Mar 9
Apr 38
May 197
Jun 284
Jul 358

Aug 350
Sep 148
Oct 64
Nov 2

2017 sightings

Feb 7
Mar 15
Apr 186
May 207
Jun 329

Jul 320
Aug 313
Sep 231
Oct 133
Nov 7

2016 sightings

Feb 2
Mar 24
Apr 152
May 327
Jun 340

Jul 356
Aug 288
Sep 245
Oct 116
Nov 77

2015 sightings

Mar 17
Apr 108
May 273
Jun 379
Jul 290

Aug 168
Sep 119
Oct 93
Nov 51

2014 sightings

Mar 1
Apr 60
May 258
Jun 296
Jul 359

Aug 265
Sep 144
Oct 79
Nov 5

2013 sightings

Mar 1
Apr 45
May 157
Jun 248
Jul 259

Aug 223
Sep 130
Oct 78
Nov 8

2012 sightings

Mar 115
Apr 232
May 371
Jun 375
Jul 265

Aug 203
Sep 139
Oct 69
Nov 9
Dec 1

2011 sightings

Mar 4
Apr 43
May 117
Jun 250
Jul 284

Aug 330
Sep 124
Oct 115
Nov 18

2010 sightings

Mar 28
Apr 100
May 179
Jun 152
Jul 215

Aug 211
Sep 113
Oct 85
Nov 11

2009 sightings

Mar 10
Apr 62
May 121
Jun 147
Jul 133

Aug 81
Sep 48
Oct 16
Nov 9

2008 sightings

Mar 3
Apr 48
May 89
Jun 104
Jul 125

Aug 143
Sep 67
Oct 38
Nov 3

2007 sightings

Mar 7
Apr 28
May 74
Jun 129
Jul 110

Aug 85
Sep 67
Oct 52
Nov 9

2006 sightings

Mar 4
Apr 22
May 53
Jun 67
Jul 52

Aug 25
Sep 18
Oct 9
Nov 1

2005 sightings

Mar 1
Apr 7
May 6
Jun 12
Jul 28

Aug 29
Sep 7
Oct 8
Nov 1