Welcome to the Durham Butterfly Count information page. This survey is part of the North American Butterfly Association's (NABA) "Fourth of July" or Seasonal Butterfly Count program. The Durham Count was established in 1999 and has been conducted annually except in 2004 when it was weathered out by a hurricane! Many other butterfly surveys take place across North Carolina. For a list of surveys and schedules, consult the Carolina Butterfly Society website.
We meet each year in the parking lot of the North Carolina Museum of Life & Science on Murry Ave in Durham. From there we divide into groups, pairing beginners with experienced butterfliers. We then set out to designated areas to survey the butterflies all day, reconvening back at the Museum in the late afternoon to compile our results. Many thanks to the Museum for allowing us use of their facilities!
The next scheduled count is Sunday August 19, 2012. Please contact me if you're interested at: jspippen@duke.edu
Below are two tables showing data from the surveys. This first table shows all the butterfly species ever reported on a Durham Butterfly Count with the 12-year average number of individuals found. The bottom table shows the compiled results with a separate column for each year of the survey.
DURHAM BUTTERFLY COUNT COMPILATION SUMMARY Avg Species 9 Pipevine Swallowtail 4 Zebra Swallowtail 16 Black Swallowtail 346 Eastern Tiger Swallowtail 45 Spicebush Swallowtail 1 Checkered White 10 Cabbage White 1 Great Southern White 7 Clouded Sulphur 16 Orange Sulphur 117 Cloudless Sulphur 2 Little Yellow 168 Sleepy Orange 1 Harvester 2 Great Purple Hairstreak 4 Juniper Hairstreak 1 White M Hairstreak 27 Gray Hairstreak 12 Red-banded Hairstreak 147 Eastern Tailed-Blue 37 Summer Azure 7 American Snout 1 Gulf Fritillary 127 Variegated Fritillary 5 Great Spangled Fritillary 23 Silvery Checkerspot 223 Pearl Crescent 2 Mourning Cloak 18 Question Mark 7 Eastern Comma 10 American Lady 6 Painted Lady 21 Red Admiral 308 Common Buckeye 54 Red-spotted Purple 22 Viceroy 18 Hackberry Emperor 14 Tawny Emporer 10 Northern Pearly-Eye 5 Appalachian Brown 7 Gemmed Satyr 139 Carolina Satyr 4 Common Wood-Nymph 64 Monarch 156 Silver-spotted Skipper 1 Long-tailed Skipper 12 Hoary Edge 4 Southern Cloudywing 1 Northern Cloudywing 4 Hayhurst's Scallopwing 24 Horace's Duskywing 2 Zarucco Duskywing 5 Wild Indigo Duskywing 33 Com. Checkered-Skipper 4 Common Sootywing 22 Swarthy Skipper 48 Clouded Skipper 30 Least Skipper 261 Fiery Skipper 3 Tawny-edged Skipper 30 Crossline Skipper 48 Southern Broken-Dash 7 Northern Broken-Dash 43 Little Glassywing 955 Sachem 6 Delaware Skipper 68 Zabulon Skipper 5 Dion Skipper 32 Dun Skipper 1 Eufala Skipper 16 Ocola Skipper 8 butterfly sp. 25 caterpillars 15 eggs 2 chrysalids 5 Average Total parties 30 Average Total party hours 54 Average Total party miles 1 Average # garden watchers 3844 Average Total Individuals: 124 Average Total Indiv per Party Hr 56 Average Total Species: 71 Total Diversity over all years
DURHAM BUTTERFLY COUNT COMPILATION SUMMARY Avg Species 1999 2000 2001 2002 2003 2005 2006 2007 2008 2009 2010 2011 Pipevine Swallowtail 2 8 7 12 8 4 18 6 22 8 4 7 Zebra Swallowtail 1 1 1 1 18 Black Swallowtail 12 36 15 35 12 9 18 11 15 9 2 Eastern Tiger Swallowtail 21 1380 44 708 218 132 608 158 62 65 697 63 Spicebush Swallowtail 25 85 26 78 53 21 108 27 29 38 25 28 Checkered White 1 Cabbage White 1 27 4 1 59 2 3 5 8 2 10 3 Great Southern White 1 Clouded Sulphur 3 17 4 20 1 9 1 1 Orange Sulphur 26 24 18 41 1 19 13 7 12 18 15 3 Cloudless Sulphur 5 83 45 168 61 138 214 126 155 75 299 32 Little Yellow 2 1 1 3 3 Sleepy Orange 23 37 57 554 28 142 109 129 67 107 521 246 Harvester 1 Great Purple Hairstreak 2 Juniper Hairstreak 2 9 6 2 5 2 2 4 White M Hairstreak 1 1 2 Gray Hairstreak 12 16 4 110 8 32 19 19 25 16 40 26 Red-banded Hairstreak 16 12 2 3 37 16 1 7 13 Eastern Tailed-Blue 29 227 45 266 26 95 70 72 352 278 170 133 Summer Azure 7 137 42 100 15 38 6 11 12 39 32 1 American Snout 1 14 7 10 24 2 10 1 3 3 9 5 Gulf Fritillary 1 1 Variegated Fritillary 54 52 29 628 10 59 359 72 76 50 67 69 Great Spangled Fritillary 1 9 1 9 1 4 4 3 8 9 8 Silvery Checkerspot 29 41 2 5 15 9 1 5 117 8 Pearl Crescent 44 828 20 479 241 96 85 216 171 107 205 181 Mourning Cloak 2 Question Mark 5 42 11 3 75 3 8 15 10 16 17 5 Eastern Comma 2 25 3 3 12 6 4 5 8 5 4 American Lady 1 14 8 4 49 2 4 6 22 6 3 2 Painted Lady 2 1 20 1 Red Admiral 1 10 48 6 41 6 2 56 6 8 60 10 Common Buckeye 162 174 55 1236 252 168 256 100 253 229 639 175 Red-spotted Purple 4 280 11 32 55 50 32 46 8 58 37 35 Viceroy 5 31 22 9 21 21 29 52 21 18 26 12 Hackberry Emperor 7 20 22 10 19 4 22 37 18 16 12 23 Tawny Emporer 68 5 4 4 25 11 11 9 2 5 Northern Pearly-Eye 3 5 19 14 14 8 2 17 8 8 12 Appalachian Brown 8 1 7 2 11 3 Gemmed Satyr 25 2 4 2 2 10 12 2 6 6 5 Carolina Satyr 6 334 14 90 20 255 92 72 25 287 98 373 Common Wood-Nymph 1 5 5 3 3 3 3 1 10 8 4 1 Monarch 14 109 180 24 5 29 137 103 86 33 39 3 Silver-spotted Skipper 80 206 131 77 421 185 135 102 171 159 118 85 Long-tailed Skipper 1 Hoary Edge 24 25 13 18 8 3 5 6 10 14 3 Southern Cloudywing 5 7 12 5 3 1 1 3 2 1 Northern Cloudywing 2 1 1 1 2 1 Hayhurst's Scallopwing 3 2 6 Horace's Duskywing 7 45 32 45 24 2 31 20 29 21 21 14 Zarucco Duskywing 3 1 3 1 1 1 1 Wild Indigo Duskywing 1 1 5 1 13 5 5 7 14 4 4 3 Com. Checkered-Skipper 6 41 8 31 17 16 28 31 33 46 61 75 Common Sootywing 3 7 11 2 1 1 4 1 2 Swarthy Skipper 2 36 8 10 11 29 16 6 8 22 95 18 Clouded Skipper 6 121 12 30 72 28 13 47 101 80 29 42 Least Skipper 9 51 3 39 13 29 40 59 42 46 13 15 Fiery Skipper 251 109 175 104 256 77 633 420 525 88 240 251 Tawny-edged Skipper 5 1 2 3 2 4 4 Crossline Skipper 17 29 7 18 5 51 92 18 16 45 25 31 Southern Broken-Dash 22 30 26 23 32 84 50 101 41 57 65 40 Northern Broken-Dash 2 9 9 7 5 5 3 1 9 15 Little Glassywing 56 18 21 25 13 75 34 30 32 42 33 142 Sachem 76 1838 478 2707 334 152 1389 640 713 412 599 2118 Delaware Skipper 1 10 2 9 7 11 6 5 3 3 2 9 Zabulon Skipper 25 148 88 61 9 61 19 51 122 148 32 53 Dion Skipper 3 1 7 1 1 3 6 18 Dun Skipper 5 30 7 21 18 19 32 57 21 29 53 97 Eufala Skipper 1 2 1 1 1 Ocola Skipper 16 8 2 56 38 39 16 1 10 1 2 3 butterfly sp. 3 21 5 3 caterpillars 32 35 36 6 1 1 33 33 33 38 23 eggs 15 chrysalids 2 Total parties 3 6 6 6 3.5 5 6 5 6 6 5 6 Total party hours 15.5 42 36.5 41.8 20 21 39.5 28 31 28.75 27.5 28 Total party miles 53 110 136 77 24 53 56 65.5 23 18.75 16.5 16.5 Total garden watchers 0 1 1 1 2 1 1 1 0 1 0 0 Total Individuals: 1095 6955 1819 8035 2639 2315 4837 3050 3430 2795 4616 4540 Total Indiv per Party Hr 71 166 50 192 132 110 122 109 111 97 168 162 Total Species: 51 60 52 60 55 55 55 57 59 59 55 57 1999 2000 2001 2002 2003 2005 2006 2007 2008 2009 2010 2011
Created on ... Sep 24, 2007 | jspippen@duke.edu