Tui De Roy / Violet tailed sylph (Aglaiocercus coelestis) Guango private reserve, Papallacta Valley, Andean Cloud Forest, East slope, Ecuador

Tui De Roy / White bellied woodstar (Chaetocercus mulsant) three hovering around red flowers, Guango private reserve, Papallacta Valley, Andean Cloud Forest, East slope, Ecuador

Mike Potts / View of the Guango River, Ecuador, November 2011.

Mike Potts / Male Torrent duck (Merganetta armata) swimming in rapids, Guango River, Ecuador.

Mike Potts / Male Torrent duck (Merganetta armata) along Guango River, Ecuador.

Mike Potts / Male Torrent duck (Merganetta armata) Guango River, Ecuador.

Mike Potts / Female Torrent duck (Merganetta armata) Guango River, Ecuador.

Mike Potts / Pair of Torrent ducks (Merganetta armata), Guango River, Ecuador.

Mike Potts / Male Torrent Duck (Merganetta armata) by river, Guango River, Ecuador

Mike Potts / Male Sword billed hummingbird (Ensifera ensifera), Guango, Ecuador.

Mike Potts / Male Chestnut breasted coronet (Boissonneaua matthewsii) Guango, Ecuador.

Mike Potts / Male Chestnut breasted coronet (Boissonneaua matthewsii), Guango, Ecuador.

Tui De Roy / White bellied woodstar (Chaetocercus mulsant) in flight, Guango private reserve, Papallacta Valley, Andean Cloud Forest, East slope, Ecuador

Tui De Roy / White bellied woodstar (Chaetocercus mulsant) in flight, Guango private reserve, Papallacta Valley, Andean Cloud Forest, East slope, Ecuador

Tui De Roy / White bellied woodstar (Chaetocercus mulsant) in flight, Guango private reserve, Papallacta Valley, Andean Cloud Forest, Ecuador

Tui De Roy / Turquoise jay (Cyanolyca turcosa) portrait, Guango private reserve, Papallacta Valley, Andean Cloud Forest, Ecuador

Tui De Roy / Turquoise jay (Cyanolyca turcosa) profile portrait, Guango private reserve, Papallacta Valley, Andean Cloud Forest, Ecuador

Tui De Roy / Tourmaline sunangel (Heliangelus exortis) Guango private reserve, Papallacta Valley, Andean Cloud Forest, Ecuador

Tui De Roy / Collared inca (Coeligena torquata) in flight, Guango private reserve, Papallacta Valley, Andean Cloud Forest, Ecuador

Tui De Roy / Collared inca (Coeligena torquata) profile portrait, Guango private reserve, Papallacta Valley, Andean Cloud Forest, Ecuador

Tui De Roy / Chestnut breasted coronet (Boissonneaua matthewsii) Guango private reserve, Papallacta Valley, Andean Cloud Forest, Ecuador

Tui De Roy / Chestnut breasted coronet (Boissonneaua matthewsii) male and female pair, Guango private reserve, Papallacta Valley, Andean Cloud Forest, Ecuador

Tui De Roy / Chestnut capped brush finch (Arremon brunneinucha) rear view, Guango private reserve, Papallacta Valley, Andean Cloud Forest, Ecuador

Roland Seitre / Sword-billed Hummingbird (Ensifera ensifera) in flight. Guango lodge, Cuyuja, Napo, Ecuador.

Pete Oxford / Mountain Velvetbreast hummingbird (Lafresnaya lafresnayi) approaching a flower. Guango cloud forest, Ecuador.

Pete Oxford / Chestnut-breasted Coronet hummingbird(Boissonneaua matthewsii) perching. Guango cloud forest, Ecuador.

Tui De Roy / Violet-tailed Sylph (Aglaiocercus coelestis) hummingbird, Guango, Papallacta, Ecuador

Tui De Roy / Chestnut-breasted Coronet (Boissonneaua matthewsii) hummingbird, Guango, Ecuador

Tui De Roy / Chestnut-breasted Coronet (Boissonneaua matthewsii) hummingbird, Guango, Ecuador