Charadriiformes
Scolopacidés
Calidris
pusilla
Semipalmated Sandpiper (Calidris pusilla) is a species of bird in the Scolopacidae family.
Grassland : Tundra ; Wetlands (inland) : Permanent Rivers/Streams/Creeks (includes waterfalls), Permanent Freshwater Lakes (over 8ha), Permanent Freshwater Marshes/Pools (under 8ha), Tundra Wetlands (incl. pools and temporary waters from snowmelt), Permanent Inland Deltas ; Marine Intertidal : Sandy Shoreline and/or Beaches, Sand Bars, Spits, Etc, Mud Flats and Salt Flats, Salt Marshes (Emergent Grasses) ; Marine Coastal/Supratidal : Coastal Brackish/Saline Lagoons/Marine Lakes