Blue-chested hummingbird

{{short description|Species of bird}}

{{speciesbox

| name = Blue-chested hummingbird

| image = Blue-chested-hummingbird.png

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn|author=BirdLife International |author-link=BirdLife International |year= 2021 |title= Amazilia amabilis |page= e.T22687552A167097101 |doi=10.2305/IUCN.UK.2021-3.RLTS.T22687552A167097101.en |access-date=11 December 2023}}

| status2 = CITES_A2

| status2_system = CITES

| status2_ref = {{Cite web|title=Appendices {{!}} CITES|url=https://cites.org/eng/app/appendices.php|access-date=2022-01-14|website=cites.org}}

| genus = Polyerata

| species = amabilis

| authority = (Gould, 1853)

| synonyms =

| range_map = Amazilia amabilis mpa.svg

}}

The blue-chested hummingbird (Polyerata amabilis) is a species of hummingbird in the family Trochilidae.

It is found in Colombia, Costa Rica, Ecuador, Nicaragua, and Panama.

Its natural habitats are subtropical or tropical moist lowland forest and heavily degraded former forest.

The hummingbird feeds by trap-lining and also defends feeding territory (particularly in nectar-poor habitat), taking nectar and also small insects gleaned from foliage.{{cite web|url=https://www.hbw.com/species/blue-chested-hummingbird-amazilia-amabilis |title=Blue-chested Hummingbird |last=Weller |first=A.A. |website=Handbook of the Birds of the World Alive |access-date=10 December 2017}} These foraging territories are often on the borders of forests in areas of scattered flowers.{{Cite web|url=https://neotropical.birds.cornell.edu/Species-Account/nb/species/blchum1/overview|title=Blue-chested Hummingbird - Introduction {{!}} Neotropical Birds Online|website=neotropical.birds.cornell.edu|access-date=2019-05-30}} The males will form leks to try to gain the attention of females during breeding season.

This species was formerly placed in the genus Amazilia. A molecular phylogenetic study published in 2014 found that Amazilia was polyphyletic.{{ cite journal | last1=McGuire | first1=J. | last2=Witt | first2=C. | last3=Remsen | first3=J.V. | last4=Corl | first4=A. | last5=Rabosky | first5=D. | last6=Altshuler | first6=D. | last7=Dudley | first7=R. | date=2014 | title=Molecular phylogenetics and the diversification of hummingbirds | journal=Current Biology | volume=24 | issue=8 | pages=910–916 | doi=10.1016/j.cub.2014.03.016 | pmid=24704078 | doi-access=free }} In the revised classification to create monophyletic genera, the blue-chested hummingbird was moved to the resurrected genus Polyerata.{{ cite journal | last1=Stiles | first1=F.G. | last2=Remsen | first2=J.V. Jr. | last3=Mcguire | first3=J.A. | year=2017 | title=The generic classification of the Trochilini (Aves: Trochilidae): reconciling taxonomy with phylogeny | journal=Zootaxa | volume=4353 | issue=3 | pages=401–424 | doi=10.11646/zootaxa.4353.3 | pmid=29245495 | url=https://www.researchgate.net/publication/321277435 }}{{cite web| editor1-last=Gill | editor1-first=Frank | editor1-link=Frank Gill (ornithologist) | editor2-last=Donsker | editor2-first=David | editor3-last=Rasmussen | editor3-first=Pamela | editor3-link=Pamela Rasmussen | year= 2023 | title=Hummingbirds | work=IOC World Bird List |version= 13.2 | url=http://www.worldbirdnames.org/bow/hummingbirds/ | publisher=International Ornithologists' Union | access-date=11 December 2023}}