Puna snipe 
Purple sandpiper 
Razorbill 
Red Knot 
Red phalarope 
Red Wattl 
Red-billed Gull 
Red-capped plover 
Red-necked phalarope 
Rhinoceros auklet 
Ring-billed gull 
River lapwing 
River Tern 
Rock pratincole 
Rock sandpiper 
Royal tern 
Ruddy Turnstone 
Ruff 
Rufous-bellied seedsnipe 
Sanderling 
Sandwich tern 
Scripps's murrelet 
Semipalmated plover 
Semipalmated sandpiper