I was going through some of my old files and found this series taken with my then new Sigma 300 – 800mm DG f/5.6 zoom at a local Nature Area, The Celery Farm in Allendale, NJ. These were some of my first images with this lens and I was quite pleased with the results. It was a challenge to get shots of the Herons flying, especially close in with a 800mm lens. I found zooming out a little to find them in the viewfinder, then zooming in for the actual shot worked well. It also helped that the Great Blue Herons are a LARGE and fairly slow flying bird. It was a fun day watching them fly around the small lake and interacting with each other. A little bit about the Celery Farm. It is a Nature Area right in the middle of densely populated Northern New Jersey. It is a little over 100 acres with a small lake and a path around the lake. The path is a little over a mile long. a few years ago there was a large variety of birds present. The last few years it seems to have quieted down some, but is still a nice quiet area to photograph nature and wildlife.