This past weekend, my son and I headed out to Antelope Island to find some Orb Weaver spiders to shoot. We did find a few spiders, but we found a lot of humming birds. It was a lot of fun watching these guys aggressively defending "their" patch of flowers from the other humming birds. I had the 400 mm with and coupled it with the 1.4x to enable me to get in nice and close to these guys. After watching these guys for a bit, we continued our quest for some spiders. We came across another group of hummers a little later on, I'll post images of them later.