Glittering-bellied Emerald.(Picaflor de pico rojo)

Thanks a lot Liam! I'll follow your advice. :-)

The White-eared Hummingbird is a predominately Mexican and Central American species. They do not reach Argentina. Daniela, in the link you provided the lighting isn't the best on the photos of the females. I usually use this site: http://www.birdforum.net/opus/Glittering...

Thanks a lot Liam and Xiaoxuan for your suggestions. I think it could be a Glittering bellied Emerald, because its bill is red and straight and also because this species occurs in Salta. But looks a little different to these pictures:http://www.freebirds.com.ar/444.htm and my hummingbird is smaller. :-)

Could it possibly be a juvenile white-eared male?

The bill is much too short for a Hermit. Take a look at Speckled Hummingbird and Glittering-bellied Emerald.

Thanks a lot Geoffrey for the help. I'll investigate Hermits in Argentina. :-)

Nice! Definitely a Hermit in the Genus Phaethornis, but I am not familiar with the Hermits in Argentina.

Thank you Karen!

wow! Stunning capture!

Thank you Rob!