Swarm Sunday: 8/1/15 – 8/15/15

Dragonfly Swarm Project logo

I’m a week behind again, but determined to get caught up!  Swarms were reported from the following locations over the last two weeks:


La Mesa, CA
Mission Hills, CA
San Diego, CA
New Smyrna Beach, FL
Iowa City, IA (2 swarms)
Iowa City, IA
Lisbon, IA
Mount Vernon, IA
West Liberty, IA
Athens, IL
Bement, IL
Chicago, IL (14 swarms)
Evanston, IL (2 swarms)
Galena, IL
Glenview, IL (2 swarms)
Ingleside, IN
Sterling, IL
Villa Grove, IL
Albion, IN
Bloomington, IN (2 swarms)
Carmel, IN
Fort Eayne, IN
Gary, IN
Huntington, IN
Vincennes, IN
Whitestown, IN
Crittenden, KY
Marshfield, MA (2 swarms)
North Brookfield, MA
Pepperell, MA
Princeton, MA
Scituate, MA
Fairfield, ME
Falmouth, ME
Portland, ME
Columbus, MI (2 swarms)
Gladwin, MI
Lakeport, MI
Livonia, MI
Newberry, MI
Ray, MI
Willis, MI
Chatfield, MN
Chesterfield, MO (2 swarms)
Holt, MO
Sibley, MO
St Louis, MO
Lucedale, MS
Woodville, MS
Holden Beach, NC
Grafton, NE
Hampstead, NH
Kensington, NH
North Haverhill, NH
Buffalo, NY
Claverack, NY
Grafton, NY
Greene, NY
Peru, NY
Troy, NY
South Vienna, OH
Twinsburg, OH
Vermilion, OH
Fields, OR
Pen Argyl, PA
Tunkhannock, PA
Bacliff, TX (2 swarms)
Corpus Christi, TX
Denton, TX
Fort Worth, TX
Rose City, TX
Virginia Beach, VA
Charlotte, VT
Stockbridge, VT
Holmen, WI
Janesville, WI
Kenosha, WI
Middelton, WI
Milwaukee, WI (3 swarms)
Casper, WY


Bancroft, ON
Bracebridge, ON
Dwight, ON
Haliburton, ON
Mississauga, ON
Orrville, ON


Momostenango, Totonicapan

And here are the US maps for the last two weeks:

8.2.15 to 8.8.15

8.9.15 to 8.15.15


Click the maps to enlarge!

Lots of activity reported from the northeastern US, including the areas around the upper Midwest and New England.  Starting to look a lot more like the migration season is upon us!  Next week I expect to start seeing increased reporting in the mid-Atlantic states and perhaps a few more in Nebraska, Arkansas, and Missouri.

This is the prime season for swarms, so be on the lookout in your area!  If you’re along the east coast or any of the rivers in the Midwest, you’re likely to see swarms over the next few weeks.  Hope you’ll report any you see!


Have you seen a dragonfly swarm? I am tracking swarms so I can learn more about this interesting behavior.  If you see one, I’d love to hear from you!  Please visit my Report a Dragonfly Swarm page to fill out the official report form.  It only takes a few minutes! Thanks!


Want more information? Visit my dragonfly swarm information page for my entire collection of posts about dragonfly swarms!


Unless otherwise stated, all text, images, and video are copyright © C. L. Goforth