There's some seriously crazy stuff in here! That Heron with the squirrel, what the hell lol. And the Cormorant with the too big Pike.
I'm not a birder at all, but have spent too much time and money trying to get eagle vs goose shots, as well as just tons of geese stuff.
Rented 600mm + 1.4x on my old XSi(great combo I know lol). 400 ISO 1/1250th F5.6 This eagle was cool as hell. Had two different colored eyes. It was pretty hard to watch them take live geese but it made me really really want close shots of it at the same time. All I got of live action was small crop sorta stuff. Threw a grand of rental time at it in 2009 with that rental. Wasn't worth it in the end.
In 2010 tried the eagle vs goose idea again but with a rented 800mm this time. Another chunk of change for shots that didn't happen. A person would pretty much need open access to go anywhere in the refuge(Squaw Creek NWR) since they all love to be out in the middle(sticking a 1.4x or 2x on that 800mm in the cold and shooting so level/across the ground...was highly pointless thanks to air compression and heatwave distortions). In 2009 that time I drove the 2hr there and 2hr back deal 11 out of 22 days trying. But anyway, mostly just came away with some telephoto geese stuff in 2010 with the 800. Rented a 7D with it that time. Eagle counts just largely sucked. Some geese poo.....
The best show there really isn't portrait related but absurdity related for geese numbers in the over 1 million range... I'd just click this one as it's screen saver size to get some idea. http://www.extremeinstability.com/stormpics/bg-f8658.jpg
And that's nothing. That goes left and right of that a good ways like that. Probably not many other locations on the planet where you can get 1.4 million birds crammed into this small of an area of water.
Birds isn't what I do really, but there have been some cool sights at that refuge over the years and who knows how many drives there. http://www.extremeinstability.com/birds.htm