The Escudo hummingbird is a hummingbird in the subfamily Trochilinae. It was long considered a doubtfully distinct species, but more recently it is generally treated as a subspecies of the rufous-tailed hummingbird, A. tzacatl.
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In zoology, a nectarivore is an animal that derives its energy and nutrient requirements from a diet consisting mainly or exclusively of the sugar-...
Oviparous animals are female animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive...