Butterfly sighting

Peter Thornquist

Location: Good Hope Island, Milwaukee River
Milwaukee County

Monarch

Monarch

Eastern Tiger Swallowtail

Eastern Tiger Swallowtail

These sightings are submitted by butterfly enthusiasts across Wisconsin.

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2019 sightings

Mar 5
Apr 130
May 188
Jun 320
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Aug 432
Sep 221
Oct 85

2018 sightings

Mar 7
Apr 38
May 196
Jun 280
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Aug 348
Sep 148
Oct 64
Nov 2

2017 sightings

Feb 7
Mar 15
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Jul 311
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Oct 133
Nov 7

2016 sightings

Feb 2
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Apr 152
May 327
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Jul 354
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Oct 116
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2015 sightings

Mar 17
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May 273
Jun 375
Jul 285

Aug 160
Sep 119
Oct 93
Nov 51

2014 sightings

Mar 1
Apr 60
May 258
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Aug 265
Sep 143
Oct 79
Nov 5

2013 sightings

Mar 1
Apr 45
May 157
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Aug 222
Sep 130
Oct 78
Nov 8

2012 sightings

Mar 115
Apr 232
May 368
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Aug 203
Sep 139
Oct 69
Nov 9
Dec 1

2011 sightings

Mar 4
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May 117
Jun 250
Jul 283

Aug 330
Sep 124
Oct 114
Nov 18

2010 sightings

Mar 28
Apr 100
May 178
Jun 152
Jul 212

Aug 211
Sep 113
Oct 79
Nov 11

2009 sightings

Mar 10
Apr 62
May 121
Jun 146
Jul 133

Aug 81
Sep 48
Oct 16
Nov 9

2008 sightings

Mar 3
Apr 48
May 89
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Aug 143
Sep 67
Oct 38
Nov 3

2007 sightings

Mar 7
Apr 28
May 74
Jun 129
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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