species eat small invertebrates picked out of the mud or soil. Different lengths of legs and bills enable multiple species to feed in the same habitat, particularly on the coast, without direct competition for food. Upland sandpiper, Bartramia longicauda Whimbrel, Numenius phaeopus Eskimo curlew, Numenius borealis (believed extinct) Long-billed curlew, Numenius americanus Hudsonian godwit, Limosa haemastica Marbled godwit, Limosa fedoa Ruddy turnstone, Arenaria interpres Red knot, Calidris canutus Ruff, Calidris pugnax Sharp-tailed sandpiper, Calidris acuminata Stilt sandpiper, Calidris himantopus Curlew sandpiper, Calidris ferruginea Sanderling, Calidris alba Dunlin, Calidris alpina Purple sandpiper, Calidris maritima Baird's sandpiper, Calidris bairdii Least sandpiper, Calidris minutilla White-rumped sandpiper, Calidris fuscicollis Buff-breasted sandpiper, Calidris subruficollis Pectoral sandpiper, Calidris melanotos Semipalmated sandpiper, Calidris pusilla Western sandpiper, Calidris mauri Short-billed dowitcher, Limnodromus griseus Long-billed dowitcher, Limnodromus scolopaceus American woodcock, Scolopax minor Wilson's snipe, Gallinago delicata Spotted sandpiper, Actitis macularia Solitary sandpiper, Tringa solitaria Lesser yellowlegs, Tringa flavipes Willet, Tringa semipalmata Greater yellowlegs, Tringa melanoleuca Wilson's phalarope, Phalaropus tricolor Red-necked phalarope, Phalaropus lobatus Red phalarope, Phalaropus fulicarius Skuas and jaegers Order: CharadriiformesFamily: Stercorariidae Skuas and jaegers are in general medium to large birds, typically with gray or brown plumage, often with white markings on the wings. They have longish bills with hooked tips and webbed feet with sharp claws. They look like large dark gulls, but have a fleshy cere above the upper mandible. They are strong, acrobatic fliers. Pomarine jaeger, Stercorarius pomarinus Parasitic jaeger, Stercorarius parasiticus Long-tailed jaeger, Stercorarius longicaudus Auks, murres, and puffins Order: CharadriiformesFamily: Alcidae The family Alcidae includes auks, murres, and puffins. These are short-winged birds that live on the open sea and normally only come ashore for breeding. Long-billed murrelet, Brachyramphus perdix Ancient murrelet, Synthliboarmphus antiquus Gulls, terns, and skimmers Order: CharadriiformesFamily: Laridae Laridae is a family of medium to large seabirds and includes jaegers, skuas, gulls, terns, kittiwakes, and skimmers. They are typically gray or white, often with black markings on the head or wings. They have stout, longish bills and webbed feet. Black-legged kittiwake, Rissa tridactyla Ivory gull, Pagophila eburnea Sabine's gull, Xema sabini Bonaparte's gull, Chroicocephalus philadelphia Black-headed gull, Chroicocephalus ridibundus Little gull, Hydrocoloeus minutus Ross's gull, Rhodostethia rosea Laughing gull, Leucophaeus atricilla Franklin's gull, Leucophaeus pipixcan Short-billed gull, Larus brachyrhynchus Ring-billed gull, Larus delawarensis Western gull, Larus occidentalis California gull, Larus californicus Herring gull, Larus argentatus Iceland gull, Larus glaucoides Lesser black-backed gull, Larus fuscus Slaty-backed gull, Larus schistisagus Glaucous-winged