Basic plumage, Bolsa Chica, Orange Co., 9-06. © John  C. Avise.

Western Sandpiper

Calidris mauri

Charadriiformes: Scolopacidae

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Transitional plumage, Newport Bay, Orange Co., 3-06. © John  C. Avise.
Alternate plumage, Bolsa Chica, Orange Co., 4-06. © John  C. Avise.


Flock, basic plumages, Crystal Cove, Orange Co., 10-07. © John  C. Avise.

Mixed plumages, Newport Bay, Orange Co., 3-06. © John  C. Avise.


Basic plumages, Crystal Cove, Orange Co., 10-07. © John  C. Avise.
Flock flying, Newport Bay, Orange Co., 10-07. © John  C. Avise.

Flock, alternate plumages, Newport Bay, Orange Co., 4-06. © John  C. Avise.
Juvenile, Bolsa Chica, Orange Co.,. © John  C. Avise.

Flying, basic plumage, Upper Newport Bay, Orange Co., 10-07. © John  C. Avise.