[Tweeters] Bird ID Help Requested

[jimbetz at jimbetz.com]

Hi,

   I'm having trouble with the ID for the "sandpiper" that is in this picture.
I think it is either a Baird's or a Solitary - but am open to other
suggestions.
   This bird was seen last week along the Rio Ameca in Jalisco, Mexico (Puerto
Vallarta area).

    
https://eamon.smugmug.com/Family-pics-from-jim/Birds-and-Stuff-from-Jim/Best-of-the-Best/n-Z9wm3x/Best-of-the-Best/i-NPbd439/A

   ... thanks for your help.                       - Jim