This species occupies a small range and may have a small population that falls into one subpopulation, with declines in population and habitat quality driven by a number of human activities such as agriculture, development and hunting. As such, the species is assessed as Near Threatened.


Marvelous Spatuletails are only known to eat nectar, and have been observed feeding from at least five species of plants. Some observers state that this species may prefer the flowers of Bomarea formosissima. Spatuletails also visit feeders.


This hummingbird species is found in very isolated pockets in a small region of Peru. It is found nowhere else in the world.