ornithological Definition

bird-watching, birder, birdwatchers, zoological, avian, wildfowl, herpetology, bird watcher, waterbird, palaeontology, wildlife, birdwatcher, fauna, lepidopterist, waterfowl, hen harrier, palaeontological, seabird, marsh harrier, birding, birdlife, ornithologists, pine marten, nightjar, ufology, entomological, rusty blackbird, curlew, peregrine, taxonomic, antiquarian, avifauna, godwit, cirl bunting, cryptid, stone curlew, corncrakes, cryptozoology, genealogical, cryptozoological, kittiwake, sacred ibis, botanic, naturalists, odonata, aviculture, bird sanctuary, reed warbler, bobolink, waxwing, northern harrier, archaeo, falconer, avocet, ethnological, trumpeter swan, shorebird, bobwhite, chough, lapwing, tawny owl, swans, archeology, ichthyologist, guillemot, whimbrel, mycological, razorbill, pipits, harlequin duck, zoologist, takahe, taxonomists, botanists, conservational, piscatorial, bullfinch, raptor, purple martin, wheatear, baltimore oriole, botanical, ruddy duck, archilochus, haliaeetus, damselfly, falcon, systematics, vesper sparrow, anthropological, dragonfly, capercaillie, passerine, prehistory, species, encyclopaedic, falconry, turnstones, bullfinches, scarlet tanager,