Funny, I just posted my own Ruddy Turnstone over on Wild and Free. I like the way you caught the bird in mid-stride. Sharpness is good and I like the blue of the water. I'd run some NR on the BG, and I'd try to bring out a little more detail in the dark areas using Shadows/ Highlights.
Fully agree with Doug !!! Can add I would like to see a better light angle for lighting the tail and maybe a little more room Excellent image and great feel !!!!