This magnificent hummingbird is endangered and found only in a small area of Peru. Its body is quite small in size but this hummingbird has an extraordinarily long tail and males have rackets on the outer most tail feathers. Marvelous Spatuletails inhabit humid forest borders, second growth, and montane scrub. When foraging, they tend to stay low and are most often seen feeding on the red-flowered lily (Alstroemeria formosissima). They also tend to perch when feeding on nectar. Males give elaborate courtship displays for females, although the ratio of adult males to females and younger birds appears to be quite unbalanced.