sea swallow Definition

sterna hirundo, tern, sterninae, sea crow, larid, pelecaniform seabird, tarrock, grey heron, aylet, sea lark, arctic tern, herring gull, sterna, snowy egret, shore bird, cattle egret, genus diomedea, great white heron, dunbird, frigate bird, whiterump, egret, whooper swan, dikkop, ferruginous duck, great skua, tufted duck, glaucous gull, manx shearwater, black guillemot, gull, wood stork, bird genus, heron, harlequin duck, mute swan, cladorhyncus, sea duck, plover, ruddy duck, ortygan, honey buzzard, tubenose, leptoptilus, marsh harrier, duck hawk, hammerkop, spoonbill, procellarian, pelagic bird, sandwich tern, sea bird, weaverbird, white stork, tystie, old world vulture, heroner, hairbird, gonydial, seabird, eskimo curlew, new world sparrow, titlark, golden oriole, cliff swallow, arctic skua, aquatic bird, snakebird, oxbird, wood ibis, peregrine falcon, oystercatcher, coraciiform bird, green plover, wrybill, shadbird, caprimulgiform bird, hen harrier, brent goose, kittiwake, gonys, ciconiidae, emu wren, phalaropidae, anhima, stone curlew, boatbill, stifftail, tyrant flycatcher, velvet scoter, barn swallow, greylag goose, mollemoke, old world flycatcher, tundra swan, godwit, columbiform bird, black vulture, curlew sandpiper, shorebird,