Hummingbirds and other bird species in the Amaranta reserve in Venezuela. Source: via Noticias Telemundo
Carmen Martínez, a Venezuelan doctor, now cares for small birds, which she says are among the most helpless animals.
State of play: Martínez created the NGO Amaranta Casa de Colibríes years back to set up a forest reserve to maintain the ecosystem of hummingbirds and almost 200 other small-bird species.
Martínez tells Noticias Telemundo the reserve has been able to fight back as loggers and miners try to take down forest areas.
Hummingbirds are key pollinators that keep certain plant species alive.