rediscovered in 1998. Fiji petrel (Pseudobulweria macgillivrayi), first rediscovered on land in 1983, and at sea in 2009. Forest owlet (Heteroglaux blewitti), assumed extinct in the 19th century, but rediscovered in central India in 1997. Fuertes's parrot (Hapalopsittaca fuertesi) Golden-fronted bowerbird (Amblyornis flavifrons) Green broadbill (Calyptomena viridis), it was declared extinct since 1941 but it was rediscovered in June 27, 2021. Gurney's pitta (Hydrornis gurneyi) Ivory-billed woodpecker (Campephilus principalis), the "Lord God Bird", thought extinct circa 1987 before unconfirmed sightings in 1999, 2004, and 2006 in Arkansas and Florida. Jerdon's courser (Rhinoptilus bitorquatus), a wader from India, assumed extinct until 1986. Kaempfer's woodpecker (Celeus obrieni), a Brazilian woodpecker feared extinct after no specimen had been found since its discovery in 1926. Rediscovered in 2006. Kakapo Large-billed reed-warbler (Acrocephalus orinus), a warbler rediscovered in Thailand in 2006, previous known only from a specimen collected in India in 1867. Long-legged warbler (Trichocichla rufa) Madagascar serpent eagle (Eutriorchis astur), rediscovered in 1993, sixty years since the previous sighting. Madagascar pochard (Aythya innotata), thought extinct since 1991 until a small group were spotted in 2006. Myanmar Jerdon's babbler (Chrysomma altirostre altirostre), last seen in 1941, rediscovered in 2015. New Zealand storm-petrel (Oceanites maorianus), believed extinct from 1850 but sighted again in 2003. Night parrot (Pezoporus occidentalis), extremely rare Australian bird presumed extinct from the 1880s until 1990. Noisy scrub-bird (Atrichornis clamosus) São Tomé fiscal (Lanius newtoni) São Tomé grosbeak (Neospiza concolor) Short-tailed albatross (Phoebastria albatrus) Silvery pigeon (Columba argentina), confirmed photographically in 2008. Stresemann's bristlefront (Merulaxis stresemanni) Táchira antpitta (Grallaria chthonia), a Venezuelan antpitta feared extinct since its discovery in 1956, but rediscovered in 2017 in El Tamá National Park. Takahe (Porphyrio hochstetteri), assumed extinct in 1898 but found again in 1948. Utila chachalaca (Ortalis vetula deschauenseei), subspecies of the plain chachalaca from Honduras, not recorded between 1963 and 2000 and confirmed photographically in 2005. White-winged guan (Penelope albipennis) White-collared kite (Leptodon forbesi) Worcester's buttonquail (Turnix worcesteri) Yellow-eared parrot (Ognorhynchus icterotis) Zapata rail (Cyanolimnas cerverai) Molluscs Discus guerinianus, a Madeiran land snail thought extinct in 1996 but found again in 1999. Greater Bermuda land snail (Poecilozonites bermudensis), last recorded sighting made in the early 1970s, survey in 1988 and studies in 2000, 2002, and 2004 seemed to confirm extinction, rediscovered in City of Hamilton alleyway in 2014. Elliptio nigella (recovery pearly mussel) Endodonta christenseni Medionidus walkeri Campanile Discussions Because its definition is ambiguous, some,