Purple Throated Woodstar, Andean Emerald & Rufous Tailed Hummingbirds [Left to Right]

Purple-throated Woodstar (Calliphlox mitchellii) is a relatively small Hummingbird and is one of the four Calliphlox genera, the woodstars. The species is found in Colombia and Ecuador, and a minor localized population in Panama, 600 km from its main species distribution.

Andean Emerald (Amazilia franciae) is a species of hummingbird found at forest edge, woodland, gardens and scrub in the Andes of Colombia, Ecuador and northern Peru. It is generally fairly common. It is green above and white below.

Rufous-tailed Hummingbird (Amazilia tzacatl) is a medium-sized hummingbird that breeds from east-central Mexico, through Central America and Colombia, east to western Venezuela and south through western Ecuador to near the border with Peru. The larger Escudo Hummingbird from Isla Escudo de Veraguas in Panama is commonly considered a subspecies of the Rufous-tailed Hummingbird. This is a common to abundant bird of open country, river banks, woodland, scrub, forest edge, coffee plantations and gardens up to 1850 m (6000 ft).

Reference: Wikipedia