Melvin Grey / Purple-throated mountain gem (Lampornis calolaemus) adult female - about to feed from flower, Atlantic Rainforest, Costa Rica.

Melvin Grey / Violet-tailed sylph hummingbird (Aglaiocercus coelestis) hummingbird adult male, approaching flower to feed, Tandayapa, Ecuador

Melvin Grey / Violet sabrewing hummingbird (Campylopterus hemileucurus) hummingbird male flying, feeding from flower, Juan Castro National Park Costa Rica.

Melvin Grey / Tufted coquette hummingbird (Lophornis ornatus) hummingbird adult male perched, Asa Wright Centre, Trinidad

Melvin Grey / Purple-throated woodstar hummingbird (Calliphlox mitchellii) hummingbird male flying to garden flower, Mindo Loma, Ecuador

Melvin Grey / Pinocchio lizard (Anolis proboscis) male, Mindo, Ecuador. Controlled conditions.

Melvin Grey / Oilbird (Steatornis caripensis) adults in nesting / roosting cave Asa Wright Field Centre, Trinidad

Melvin Grey / Purple gallinule (Porphyrula martinica) adult. Wakodahatchee Wetlands, Florida, USA, May.

Melvin Grey / Variable sunbird (Nectarinia venusta) adult male on Hibiscus flower, Nairobi, Kenya

Melvin Grey / Chestnut-bellied sandgrouse (Pterocles exustus olivascens) male. Ndutu, Tanzania.

Melvin Grey / Black-faced sandgrouse (Pterocles decoratus) pair standing, reflected in pool. Meru National Park, Kenya.

Melvin Grey / Chestnut-bellied sandgrouse (Pterocles exustus olivascens) pair in flight. Meru National Park, Kenya.

Melvin Grey / Chestnut-bellied sandgrouse (Pterocles exustus olivascens) male soaking feathers to provide chicks at nest with water. Meru National Park, Kenya.

Melvin Grey / Blue tit (Cyanistes caeruleus), two feeding on fat ball, one leucistic. Carmarthenshire, Wales, UK. August.

Melvin Grey / Senegal thicknee (Burhinus senegalensis), leucistic. Gambia, Africa.

Melvin Grey / Cape buffalo (Syncerus caffer caffer) portrait, Red-billed oxpeckers (Buphagus erythrorhynchus) removing parasites. Nakuru, Kenya.

Melvin Grey / Angle shades moth (Phlogophora meticulosa) roosting on dead leaf. Carmarthenshire, Wales, UK. June.

Melvin Grey / Yellow-winged bat (Lavia frons) roosting. Bogoria, Kenya.

Melvin Grey / Turtle dove (Streptopelia turtur) female feeding chicks on nest. Ranmore Common, near Dorking Surrey, England, UK. July.

Melvin Grey / Bechstein's bat (Myotis bechsteinii) resting with open mouth. West Wales, UK.

Melvin Grey / Kotschy's gecko (Mediodactylus kotschyi) on rock. Rupite, Bulgaria. April.

Melvin Grey / Dice snake (Natrix tessellata) coiled up on moss. Bulgaria. April.

Melvin Grey / Night heron (Nycticorax nycticorax) male standing in water. Kiskunsagi National Park, Hungary. May.

Melvin Grey / Night heron (Nycticorax nycticorax) male standing stalking prey in water. Kiskunsagi National Park, Hungary. May.

Melvin Grey / Dik-dik (Madoqua saltiana) male with scent gland below eye, portrait. Manyara, Tanzania.

Melvin Grey / Cheetah (Acinonyx jubatus) female and cubs. Ndutu, Tanzania.

Melvin Grey / Yellow-throated sandgrouse (Pterocles gutturalis saturatior) male. Ndutu, Tanzania. Medium repro only.

Melvin Grey / Green toad (Bufotes viridis) adult, Kresna Area, Bulgaria.

Melvin Grey / Greek Stream Frog (Rana graeca ) adult - diagnostic pale line down from snout just visible. Kresna Area, Bulgaria. Medium Repro only

Melvin Grey / Greek Stream Frog (Rana graeca ) adult - diagnostic pale line down from snout just visible. Kresna Area, Bulgaria. Medium Repro only

Melvin Grey / Greek Stream Frog (Rana graeca ) adult - diagnostic pale line down from snout just visible. Kresna Area, Bulgaria. Medium Repro only

Melvin Grey / Eastern spadefoot toad (Pelobates syriacus) adult digging itself underground in sandy soil, backwards. Kresna Area, Bulgaria

Melvin Grey / Eastern spadefoot toad (Pelobates syriacus) adult digging itself underground in sandy soil, backwards. Kresna Area, Bulgaria

Melvin Grey / Common Tree Frog (Hyla arborea) adult in tree, Kresna Area, Bulgaria

Melvin Grey / Agile Frog (Rana dalmatina) Rupite Area, Bulgaria

Melvin Grey / Agile Frog (Rana dalmatina) adult, Rupite Area, Bulgaria

Melvin Grey / Agile Frog (Rana dalmatina) adult, Rupite Area, Bulgaria

Melvin Grey / Yellow-bellied Toad (Bombina variegata) adult showing warning display, Kresna area, Bulgaria

Melvin Grey / Yellow-bellied Toad (Bombina variegata) adult, on white background/ Kresna area, Bulgaria

Melvin Grey / Marsh Frog (Pelophylax ridibundus) adult at edge of small, open lake in public park, hiding amongst 'blanket weed', with small fish. Kresna Area, Bulgaria

Melvin Grey / Green toad (Bufotes viridis) adult, Kresna Area, Bulgaria

Melvin Grey / Hog-nosed pit viper (Porthidium nasutum) Atlantic Lowland Rainforest, Costa Rica.

Melvin Grey / Green-crowned brilliant hummingbird (Heliodoxa jacula) female hovering in front of flower, Atlantic cloud forest, Costa Rica

Melvin Grey / Green-crowned brilliant hummingbird (Heliodoxa jacula) female, Atlantic clouds forest, Costa Rica.

Melvin Grey / Green hermit hummingbird (Phaethornis guy) adult male in flight, Atlantic cloud forest, Costa Rica.

Melvin Grey / Green hermit hummingbird (Phaethornis guy) adult male - about to feed from flower. Atlantic slope cloud forest, Costa Rica.

Melvin Grey / Green Hermit hummingbird (Phaethornis guy) adult female flying in fornt of flower, lowland rainforest, Costa Rica. Medium repro only.

Melvin Grey / Black vultures (Coragyps atratus) in heavy rain, Costa Rica. Medium repro only