Bolsa Chica Ecological Reserve - Michael Boughey
Excavated Sand Pellets surrounding fiddler crab holes at low tide.

Excavated Sand Pellets surrounding fiddler crab holes at low tide.

The fiddler crabs appear to be Mexican Fiddler Crabs (Uca crenulata).

Mexican Fiddler CrabBolsa Chica WetlandsBurrowsRabbit IslandSand Pellets