Newton's sunbird

{{Short description|Species of bird}}

{{Speciesbox

| image = São Tomé sunbird (Anabathmis newtonii) male.jpg

| image_caption = Male

| image2 = São Tomé sunbird (Anabathmis newtonii) female.jpg

| image2_caption = Female
both on São Tomé island

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=BirdLife International |date=2018 |title=Anabathmis newtonii |volume=2018 |page=e.T22717714A131458327 |doi=10.2305/IUCN.UK.2018-2.RLTS.T22717714A131458327.en |access-date=17 November 2021}}

| genus = Anabathmis

| species = newtonii

| authority = (Bocage, 1887)

| range_map = Anabathmis newtonii range map.svg

| synonyms = *Nectarinia newtonii Bocage, 1887

}}

File:Chrysococcyx cupreus MHNT.ZOO.2010.11.150.23.jpg]]

Newton's sunbird, or the São Tomé sunbird (Anabathmis newtonii) is a species of bird in the family Nectariniidae. It is endemic to São Tomé Island. It is one of the smallest sunbirds.{{citation | contribution-url = http://www.ecofac.org/GuideOiseauxSTP/N112_SouimangaNewton/N112_SouimangaDeNewton.htm | contribution = SOUIMANGA DE NEWTON | title = Le Guide des oiseaux de São Tomé et Príncipe | author = Patrice Christy - William Clarke | publisher = ECOFAC | url = http://www.ecofac.org/GuideOiseauxSTP/Index.htm | language = fr | url-status = dead | archive-url = https://web.archive.org/web/20080509125309/http://www.ecofac.org/GuideOiseauxSTP/Index.htm | archive-date = 2008-05-09 }} In general, the bird has dark olive upperparts - the male has an iridescent green-purple throat and upper breast region, while females have a dull olive throat and yellowish underparts, but underparts in female youth do not develop into yellow until later sexual maturity.{{Cite web|url=https://avibase.bsc-eoc.org/species.jsp?avibaseid=BFA9B759110D3A12|title=Anabathmis newtonii (Newton's Sunbird) - Avibase}}