All of the following - except the upupa - are listed in Chambers Dictionary...uakari (monkey), umbrella ant, umbrella bird, umbrette (stork), unau (sloth), upupa (or hoopoe bird), urchin (sea-), urial (sheep), urson (porcupine), urubu (vulture), urva (mongoose). Ukulele is the name of a musical instrument in English, but the word comes from the Hawaiian for �flea'...and there is always the wonderful, mythical unicorn, as Marmaduke has said..