Territorial Dispute

Zebra Longwing (a.k.a. Zebra Helicon; Heliconius charithonia) nectoring on Spanish Needle (Hairy Beggarticks; Bidens alba L.) - Arthur R. Marshall Visitor Center, Loxahatchee National Wildlife Refuge, Boynton Beach, Florida

This is a 4K HD video, so take advantage of that by viewing this full screen, and if you're a PC user, try hitting the F11 key to get rid of the tab bars to go totally full screen.

And you can also slow-drag the video frame by frame to see the details of the confrontation.