When I got home late this afternoon, the Ruby-throated Hummingbirds were again buzzing around the trees behind the house. I could not resist trying to photograph them in flight. My hummingbird images from Monday were of them sitting on tree branches, which are much easier to capture. I was successful today.
Below are two of the inflight (actually hovering) images. Hummingbirds fly way too fast to capture in mid-flight. The first image is of a female and the second of a male whose throat is ruby red when the sun strikes it. The female’s throat only has one small ruby red spot that also glows when the sun hits it just right. Unfortunately, in the below images the sun was not at the right angle to illuminate their throats.
In order to photograph the hummingbirds inflight, I cranked up the ISO on my Nikon D700 to enable a higher shutter speed. The EXIF data for the first image: ISO 1600, 300mm, f5.6, 1/800 sec., and for image two: ISO 2000, 135mm, f7.1, 1/800 sec.
Stephen L Tabone Nature Photography 
Thanks for posting these great pics! I just got a DSLR, so your description of your settings is very helpful.
“How big,” or should I ask, “how small are these birds?” I never get to see them up here so it is amazing that you can have so many and capture them sitting and in-flight!