Least Sandpiper

This is a least sandpiper :)

Jeff , i went back and had a look and this was totally solitary.

Jeff, i will have to go back and scan the pics again for the numbers.
All i can say is that they were not as abundant as sanderlings.

I withdrew the pectoral suggestion. I checked out eBird and found that pectoral sandpipers have only been seen at Bolsa Chica between August and November. I agree with least sandpiper since there really aren't any alternatives. Did you see several? I have only seen pectorals as single birds, while leasts can occur in huge numbers.

Thanks Gators! i am inclined to go with Least Sandpiper.
It is impossible to differentiate when you are actually on site,taking pictures, it is only when you scan and scrutinize the pictures that you can see these subtle differences and you are in for a pleasant surprise!

Check the range on the Pectoral - it is listed as rare at Bolsa Chica. Here is a good reference comparing the Least and Pectoral; http://www.birdfellow.com/journal/2013/0...

Thanks so much :)
Does the neck seem long enough?

I suggest pectoral sandpiper based on long, yellowish legs, and what appears to be a sharp border between the white belly and buffy breast feathers. I don't think least sandpiper has such long legs.

hmmm, i can't quite nail it, could be a pectoral sandpiper, least sandpiper, or western sandpiper