Male competitor at Norwegian biathlon competition.
20123870
Male competitor at Norwegian biathlon competition.
20121886
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...
20121885
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.
20121890
Animals, Birds, A male Black-bellied Hummingbird, Euperusa nigriventris, pollinates a tropical blueberry flower while a Green Thorntail Hummingbird, Discosura conversii, waits its turn. Costa Rica.
20121892
Animals, Birds, Black-bellied Hummingbird, Euperusa nigriventris, and a Coppery-headed Emerald Hummingbird, - Elvira cupreiceps compete for feeding space on a Costus flower in Costa Rica.
20121891
Animals, Birds, A Black-bellied Hummingbird and a Coppery-headed Emerald Hummingbird face off in competition for a feeding site on a Costus flower in Costa Rica.
20121910
Animals, Birds, A Green Hermit Hummingbird, Phaethornis guy, feeding on the nector of a Lobster Claw Heliconia flower while a Coppery-headed Emerald Hummingbird waits his turn. Costa Rica
20121916
Animals, Birds, A female Green-crowned Brilliant Hummingbird, Heliodoxa jacula, protects her feeding spot from another female in Costa Rica.
20121928
Animals, Birds, Territorial competition between a male Magnificent Hummingbird, Eugenes fulgens, at right, and a female Green-crowned Brilliant Hummingbird, Heliodoxa jacula, perched on a yellow Costu...
20121932
Animals, Birds, A female Green-crowned Brilliant Hummingbird, Heliodoxa jacula, perches on a yellow Costus flower while feeding. A female Purple-throated Mountain-gem Hummingbird, Lamporis calolaemus,...
