This Eastern Tiger Swallowtail butterfly (Papilio glaucus) was sipping from a wet area at the edge of a forest creek (and maybe ingesting other nutrients) when I photographed it on 23 April at Prince William Forest Park in Triangle,Virginia. I used to associate this species of butterfly with gardens, because that is where I tended to spot them in the past. However, over the last few years, I have spent a lot of time in the spring in forested areas and have spotted Eastern Tiger Swallowtails regularly there, both individually and in small groups.
Check out my 2021 posting called “A Kaleidoscope of butterflies” to see a photograph of Eastern Tiger Swallowtails “puddling,” i.e. congregating together on wet sand and mud to drink water and extract minerals from puddles.
© Michael Q. Powell. All rights reserved.
Mike Powell 
Great shot!
So nice!
Thanks.
We loved seeing huge flocks of them in the Smoky Mountains!