Flowers and seed pods of a plant of the Genus Senna in the Atitlan Nature Reserve near Panajachel, Guatemala.

A beautiful Calico Flower or Elegant Dutchman's Pipe, Aristolochia littoralis, in the Atitlan Nature Reserve near Panajachel, Guatemala.

Zebra Longwing or Zebra Heliconia Butterfly, (Heliconius charitonia), feeding on a flower near Panajachel, Guatemala

A female Pale-spotted Swallowtail Butterfly, Papilio erostratus, in the Atitlan Nature Reserve near Panajachel, Guatemala. The females have pink spots, while the males have white ones. This butterfl...

Three Mexican Silverspot Butterflies, Dione moneta poeyii, on a plant in the Atitlan Nature Reserve near Panajachel, Guatemala.

Guatemala, Solola Department, Lake Atitlan with San Pedro Volcano and the town of San Pedro la Laguna at its base. Lake Atitlan is a giant volcanic crater or caldera filled with water.

Animals, Birds, A Black-bellied Hummingbird, Euperusa nigriventris, approaches a tropical flower of the Kohleria genus of the Gesneriaceae or African Violet family, to feed, and in the process, pollin...

Animals, Birds, A Black-bellied Hummingbird, Euperusa nigriventris, approaches a tropical blueberry flower to feed, and in the process, pollinates the flowers as it flies from one to the next. Costa R...

Animals, Birds, A Black-bellied Hummingbird, Euperusa nigriventris, feeds on the nector of a tropical Hairy Heliconia flower, Heliconia vellerigera, and in the process, pollinates the flowers as it fl...

Animals, Birds, A Black-bellied Hummingbird, Euperusa nigriventris, warns off a Coppery-headed Emerald Hummingbird, Elvira cupreiceps, attempting to feed on a hairy heliconia flower, Heliconia velleri...

Animals, Birds, A Black-bellied Hummingbird, Euperusa nigriventris, sits on a lobster-claw heliconia while a Green Thorntail Hummingbird, Discosura conversii, hovers nearby in Costa Rica.

Animals, Birds, A Black-bellied Hummingbird, Euperusa nigriventris, feeds on the nector of a tropical flower of the Kohleria genus of the Gesneriaceae or African Violet family, and in the process, pol...