Pedro Narra / Red fox (Vulpes vulpes) and a newborn cub, Sado Estuary, Portugal. May

Pedro Narra / Little owl (Athene noctua) Sado Estuary, Portugal. June

Pedro Narra / Bottlenose dolphin (Tursiops truncatus) porpoising, Sado Estuary, Portugal. October

Pedro Narra / Red fox (Vulpes vulpes) at dusk with moon, Sado Estuary, Portugal. September

Pedro Narra / Bottlenose dolphin (Tursiops truncatus) porpoising, Sado Estuary, Portugal. July

Pedro Narra / White spoonbill (Platalea leucorodia) adults at nest with chicks, Sado estuary, Portugal. May

Pedro Narra / Hedgehog (Erinaceus europaeus) walking through puddle. Sado Estuary, Portugal . March

Pedro Narra / Aerial view of low tide in Sado estuary, Portugal. November

Pedro Narra / Little Tern (Sterna albifrons) feeding chick, Sado Estuary, Portugal. June

Pedro Narra / Red fox (Vulpes vulpes) silhouetted, Sado Estuary, Portugal. September

Pedro Narra / Barn Owl (Tyto alba) chicks in nest, Sado Estuary, Portugal . June

Pedro Narra / Red fox (Vulpes vulpes) vixen grooming cub, Sado Estuary, Portugal. May

Pedro Narra / Bottlenose dolphin (Tursiops truncatus) baby age two weeks porpoising, Sado Estuary, Portugal

Pedro Narra / Bottlenose Dolphin (Tursiops truncatus) family swimming near the surface, Sado Estuary, Portugal

Pedro Narra / Two people helping a stranded Striped dolphin (Stenella coeruleoalba) in the surf, Troia, Sado Estuary, Portugal

Pedro Narra / Common dolphin (Delphinus delphis) porpoising, Atlantic Ocean, Sado Estuary, Portugal, October

Pedro Narra / Bottlenose dolphins (Tursiops truncatus) leaping during mating ritual, Sado Estuary, Portugal, October

Pedro Narra / A pod of Bottlenose dolphins (Tursiops truncatus) porpoising, silhouetted at sunset, Sado Estuary, Portugal, November

Pedro Narra / Bottlenose dolphin (Tursiops truncatus) leaping in front of a cargo ship, Sado Estuary, Portugal, September

Pedro Narra / A pod of Bottlenose dolphins (Tursiops truncatus) swimming into the Sado river, Portugal, July

Pedro Narra / Two Bottlenose dolphins (Tursiops truncatus) jumping close the industrial area in the north chanel of the river Sado, Sado Estuary, Portugal, May

Pedro Narra / Bottlenose dolphins (Tursiops truncatus) leaping in mating rituals, Sado Estuary, Portugal, October

Luis Quinta / Black winged stilt (Himantopus himantopus) chick, Reserva Natural Esturio do Sado, Portugal

Luis Quinta / Black winged stilt (Himantopus himantopus) with chick, Reserva Natural Esturio do Sado, Portugal

Pedro Narra / Purple swamphen (Porphyrio porphyrio). Sado Estuary Natural Reserve, Portugal. December.

Pedro Narra / Montpellier snake (Malpolon monspessulanus) on sand in evening light. Sado Estuary Natural Reserve, Portugal. June

Pedro Narra / Wood mouse (Apodemus sylvaticus) at night, Sado estuary, Portugal . February

Pedro Narra / Little Tern (Sterna albifrons) courtship feeding, Sado Estuary, Portugal. June

Pedro Narra / Common kingfisher (Alcedo atthis) preening, water. Sado Estuary, Portugal. May

Pedro Narra / Northern shoveler (Anas clypeata) female. Sado Estuary, Portugal. December

Pedro Narra / Little owl (Athene noctua) Sado Estuary, Portugal. May

Pedro Narra / Moorhen (Gallinula chloropus) walking, Sado Estuary, Portugal. December

Pedro Narra / Moorhen (Gallinula chloropus) on water, Sado Estuary, Portugal. March

Pedro Narra / Greater flamingos (Phoenicopterus roseus) resting, Sado Estuary, Portugal. January

Pedro Narra / Cormorant (Phalacrocorax carbo) feeding, with large fish in beak, Sado Estuary, Portugal. January

Pedro Narra / European bee-eater (Merops apiaster) two, one eating bumblebee, Sado Estuary, Portugal. May

Pedro Narra / Coot (Fulica atra) swimming, Sado Estuary. Portugal. April

Pedro Narra / Red fox (Vulpes vulpes) and a newborn cub, Sado Estuary, Portugal. May

Pedro Narra / White spoonbill (Platalea leucorodia) feeding young, Sado estuary, Portugal. May

Pedro Narra / Pied avocet (Recurvirostra avosetta) scratching face, Sado estuary, Portugal. December

Pedro Narra / White spoonbill (Platalea leucorodia) chicks begging for food, Sado estuary, Portugal. May

Pedro Narra / Goldfinch (Carduelis carduelis) regurgitating food for chicks, Sado Estuary. Portugal . April

Pedro Narra / Red fox (Vulpes vulpes) looking back, Sado Estuary, Portugal. September

Pedro Narra / Cormorant (Phalacrocorax carbo) flock in flight at dusk, Sado Estuary, Portugal. January

Pedro Narra / Hedgehog (Erinaceus europaeus) at dusk, Sado estuary, Portugal. March

Pedro Narra / Common kingfisher (Alcedo atthis) two perched on branch rear view, Sado Estuary, Portugal. May

Pedro Narra / Common kingfisher (Alcedo atthis) two perched on branch,rear view looking to right, Sado Estuary, Portugal. May

Pedro Narra / White stork (Ciconia ciconia) chick on nest, Sado estuary, Portugal. June

Pedro Narra / Bottlenose dolphin (Tursiops truncatus) with newborn baby at surface, Sado Estuary, Portugal. August

Pedro Narra / European fire salamander (Salamandra salamandra) Sado Estuary, Portugal. February

Pedro Narra / Coot (Fulica atra) on stream, Sado Estuary. Portugal. April

Pedro Narra / Coot (Fulica atra) Sado Estuary. Portugal. March

Pedro Narra / Tourists watching Bottlenose dolphin (Tursiops truncatus) from boat, Sado Estuary, Portugal. May

Pedro Narra / Bottlenose dolphin (Tursiops truncatus) porpoising in front of the bow, Sado Estuary, Portugal. August

Pedro Narra / Red fox (Vulpes vulpes) rear view of head and ears, Sado Estuary, Portugal. September

Pedro Narra / Little Owl (Athene noctua) portrait, Sado Estuary, Portugal. June

Pedro Narra / Cormorant (Phalacrocorax carbo) Sado Estuary, Portugal. December

Pedro Narra / Little Owl (Athene noctua) with grasshopper prey, Sado Estuary, Portugal. June

Pedro Narra / Grey heron (Ardea cinerea) hiding in reeds, Sado Estuary, Portugal. April

Pedro Narra / Bottlenose dolphin (Tursiops truncatus) surfacing, Sado Estuary, Portugal. October

Pedro Narra / Egyptian mongoose (Herpestes ichneumon). Sado Estuary, Portugal. November

Pedro Narra / Greater flamingos (Phoenicopterus roseus) flock in flight, Sado Estuary, Portugal. January

Pedro Narra / White spoonbill (Platalea leucorodia) Sado estuary, Portugal. May

Pedro Narra / Hoopoe (Upupa epops) juvenile, Sado Estuary, Portugal. May

Pedro Narra / Red fox (Vulpes vulpes) on sand dunes, Sado Estuary, Portugal. October

Pedro Narra / Little Tern (Sterna albifrons) brooding chick and egg, Sado Estuary, Portugal. June

Pedro Narra / Greater flamingos (Phoenicopterus roseus) portrait, Sado Estuary, Portugal. April

Pedro Narra / Razorbill (Alca torda) preening on water, Sado Estuary, Portugal. November

Pedro Narra / Little Tern (Sterna albifrons) feeding chick, Sado Estuary, Portugal. June

Pedro Narra / Aerial view of Bottlenose dolphin (Tursiops truncatus) pod. Sado Estuary, Portugal. October

Pedro Narra / White spoonbill (Platalea leucorodia) on nest with chicks, Sado estuary, Portugal. May

Pedro Narra / Little Tern (Sterna albifrons) and chick on nest, Sado Estuary, Portugal. June

Pedro Narra / White stork (Ciconia ciconia) feeding chick, Sado estuary, Portugal. June

Pedro Narra / Hoopoe (Upupa epops) with insect prey in beak, Sado Estuary, Portugal. May

Pedro Narra / Common kingfisher (Alcedo atthis) preening, Sado Estuary, Portugal. June

Pedro Narra / Bottlenose dolphin (Tursiops truncatus) two swimming side by side, seen from surface of water, Sado Estuary, Portugal. June

Pedro Narra / Bottlenose dolphins (Tursiops truncatus) swimming with calf, Sado Estuary, Portugal. June

Pedro Narra / Black winged stilt (Himantopus himantopus) chick and egg. Sado Estuary, Portugal. June

Pedro Narra / Bottlenose dolphin (Tursiops truncatus) Sado Estuary, Portugal. August

Pedro Narra / Greater flamingos (Phoenicopterus roseus) Sado Estuary, Portugal. January

Pedro Narra / Coot (Fulica atra) portrait, Sado Estuary. Portugal. March

Pedro Narra / Blue Tit (Cyanistes caeruleus) hanging upside down, Sado Estuary, Portugal. October

Pedro Narra / Black winged stilt (Himantopus himantopus) profile, Sado Estuary, Portugal. June

Pedro Narra / White spoonbill (Platalea leucorodia) chicks on nest, Sado estuary, Portugal. May

Pedro Narra / Greater flamingos (Phoenicopterus roseus) flock, Sado Estuary, Portugal. January

Pedro Narra / Little Tern (Sterna albifrons) with chick, Sado Estuary, Portugal. June

Pedro Narra / Little Tern (Sterna albifrons) stretching while incubating eggs, Sado Estuary, Portugal. July

Pedro Narra / Crested tit (Lophophanes cristatus) on tree trunk, Sado Estuary, Portugal. October

Pedro Narra / Aerial view of flock of Cormorant (Phalacrocorax carbo) on shore of Sado Estuary, Portugal. November

Pedro Narra / Aerial view of tide going out, Sado estuary, Portugal. November

Pedro Narra / Aerial view of low tide in Sado estuary, Portugal. November

Pedro Narra / Hedgehog (Erinaceus europaeus) baby next to mother, Sado Estuary, Portugal. November

Pedro Narra / Purple Heron (Ardea purpurea) hatching, Sado estuary, Portugal. May

Pedro Narra / Ocellated lizard (Lacerta lepida) Sado Estuary, Portugal. May

Pedro Narra / Little egret (Egretta garzetta) Sado estuary, Portugal. May

Pedro Narra / Greater flamingos (Phoenicopterus roseus) close up portrait of eye , Sado Estuary, Portugal. April