Fireweed gone to seed

At the beginning of summer, it was a swathe of pink, with insects and birds flitting all around.
These days, the fireweed flowers in Discovery Park's South Meadow have given way to fluff, but that didn't stop two male Anna's hummingbirds from chasing each other and doing high speed diving displays over the patch.

Here's a nicer picture from another part of the park.