Thanks Gary...I saw the wren yesterday. (Getting a little better - guessing correctly on harriers and shovelers - but still lots to learn and frequently unsure!)
1&2 is Wren (Marsh I'm guessing-what time of year?). Northern Harriers (white on upper part of tail, long tail, flying just above ground over open field) are 3 & 4 photos. Northern Shoveler (long. spoon bill) last photo. Gary