mug up Definition

bone, swot, drum, get up, cram, bone up, grind away, swot up, pterylography, debeak, hairbird, birdling, piciform bird, birdlet, pteryla, little owl, pinefinch, great tit, waxbird, grey heron, gonydial, willow grouse, bird, oilbird, dikkop, woodpecker, hangbird, bluebreast, uropygial gland, night raven, bird table, new world sparrow, aylet, gonys, chirm, old world flycatcher, honey guide, uropygium, whiterump, cassican, brevipen, epithema, broadmouth, green woodpecker, birdcatching, zygodactylae, golden oriole, figpecker, peristeropodous, beambird, apodiform bird, black grouse, tree sparrow, dunbird, batfowl, night bird, heroner, peck, black vulture, white stork, pileated woodpecker, birdbolt, emu wren, gallinacean, sembling, honeybird, common snipe, baby bird, meropidan, zygodactylic, hickwall, dovelet, barn swallow, gallinaceous bird, reedbird, corniplume, wood pigeon, hangnest, guacharo, desmognathous, weaverbird, old world vulture, bipupillate, cushat, cuculiform bird, stockdove, barn owl, caprimulgiform bird, wheatbird, fairy bluebird, shore bird, ortygan, hammerkop, wrybill, coalmouse, hummingbird, cubilose, witwall, chewink, bird of passage,