Thanks Chris. The lens is the EX f3.5 version.
That is a very nice lens. I considered getting either that lens of the Minolta 200 f/4 macro, but I am having trouble justifying buying another macro lens. I doubt I would use it very often. But you can't have too many good lenses,.....can you? 
I'm planning to get a more appropriate lens for this sort of photography (300 f2.8 AF-S, 80-400VR, or a big Sigma like the 50-500 "bigma" )
I recently bought a used Sigma 500 f/4.5 APO from KEH.com for around the same price as the Bigma. I thought about buying a new Bigma instead, but decided I would mostly use it at 500 and the extra 1/2 stop would be nice to have.
Certainly worth looking for.
I really love this lens, although it is a BEAST! By itself it weighs almost 7 lbs. Part of the problem with big heavy lenses is getting them stabilized to shoot with.
Sure, with patience and luck and a good 300 you can get some shots, but a 500 really makes a huge difference, and faster is always better, IMHO.
I know Canon makes a very nice 100-400 IS L series lens. I suspect the Nikon 80-400VR is equally nice. I've seen a lot of very good bird shots with the Canon lens.
The new Tamron 200-500 gets really good reviews as well.
I've compared this yellowlegs to several photos and I'm still not convinced of its identity. It let me approach fairly closely so I went with lesser. I read the greater yellowlegs is much more skittish.
The key is the bill.
Lesser - short bill (less than the length of the head), bill is mostly dark, bill doesn't turn up
Greater - bill longer than head, bicolored, bill slightly upcurved
Here's a gloomy overcast shot of some beachpipers with the 500 4.5 handheld.

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Chris Harrison
San Antonio, Texas