Roger Powell / Great white egret (Casmerodius albus) in flight. Cedar Key, Levy County, Florida, USA, March

Roger Powell / Great horned owl (Bubo virginianus) roosting in a pine tree, Cedar Key, Levy County, Florida, USA April

Roger Powell / Cloudless sulphur butterfly (Phoebis sennae) feeding on nectar from a thistle flower head, Cedar Key, Levy County, Florida, USA, April

Roger Powell / Male Boat-tailed grackle (Quiscalus major) perched on an old rope howser and singing, Cedar Key, Levy County, Florida, USA, April

Roger Powell / American white pelicans (Pelecanus erythrorhynchos) large flock group feeding by encircling fish trapped by the falling tide, Cedar Key, Levy County, Florida, USA, April

Roger Powell / American white pelicans (Pelecanus erythrorhynchos) large flock group feeding by encircling fish trapped by the falling tide, Cedar Key, Levy County, Florida, USA, April

Roger Powell / American black vulture (Coragyps atratus) perched in a tree, Lower Suwannee, Levy County, Florida, USA, April

Roger Powell / American avocets (Recurvirostra americana) flock in flight. Cedar Key, Levy County, Florida, USA, April

Roger Powell / American avocets (Recurvirostra americana) flock in flight. Cedar Key, Levy County, Florida, USA, April

Roger Powell / Airboat used by tourists for leisure activities; this type of vessel, because of its shallow draft, can get into areas that other boats can't, however it is extremely noisy and disturbs wildlife, espe...

Roger Powell / Willet (Tringa semipalmata) walking through vegetation on a sandbar, Cedar Key, Levy County, Florida, USA. April

Roger Powell / White ibis (Eudocimus albus) juvenile walking across a sandbar, Cedar Key, Levy County, Florida, USA, April

Roger Powell / White ibis (Eudocimus albus) walking towards the tideline, Cedar Key, Levy County, Florida, USA April

Roger Powell / White Ibis (Eudocimus albus) feeding in a tidal wet meadow. Cedar Key, Levy County, Florida, USA

Roger Powell / Snowy egrets (Egretta thula) flock in flight. Cedar Key, Levy County, Florida, USA, April

Roger Powell / Short-billed dowitcher (Limnodromus griseus) walking along the sandy tideline, Cedar Key, Levy County, Florida, USA, April

Roger Powell / Snowy egrets (Egretta thula) three foraging in a shallow creek, Cedar Key, Levy County, Florida, USA, April

Roger Powell / Short-billed dowitchers (Limnodromus griseus) migratory flock on the tideline, Cedar Key, Levy County, Florida, USA, April

Roger Powell / Royal tern (Sterna maxima) in breeding plumage, resting on a post, Cedar Key, Levy County, Florida, USA April

Roger Powell / Roseate spoonbill (Platalea ajaja) flapping wings at the waters edge, Cedar Key, Levy County, Florida, USA, April

Roger Powell / Roseate spoonbill (Platalea ajaja) preening wing feathers, whilst standing at the waters edge. Cedar Key, Levy County, Florida, USA, April

Roger Powell / Roseate spoonbills (Platalea ajaja) flock gathering on a sand bar, Cedar Key, Levy County, Florida, USA, April

Roger Powell / Roseate spoonbill (Platalea ajaja) wading through shallow water foraging, Cedar Key, Levy County, Florida, USA, April

Roger Powell / Roseate spoonbill (Platalea ajaja) male displaying to female with its beak at the waters edge, Cedar Key, Levy County, Florida, USA, April

Roger Powell / Osprey (Pandion haliaetus) male displaying by flying past with a Flathead grey mullet (Mugil cephalus) in its talons. Cedar Key, Levy County, Florida, USA April

Roger Powell / Osprey (Pandion haliaetus) male displaying by flying past with a Flathead grey mullet (Mugil cephalus) in its talons. Cedar Key, Levy County, Florida, USA April

Roger Powell / North American river otters (Lontra canadensis) family group with one of which has just caught a crab, Lower Suwannee River, Levy County, Florida, USA April

Roger Powell / Short-billed dowitchers (Limnodromus griseus) among other migrant shorebirds, Cedar Key, Levy County, Florida, USA April

Roger Powell / Least sandpiper (Calidris minutilla) foraging along coast line, Cedar Key, Levy County, Florida, USA April

Roger Powell / Green anole lizard (Anolis carolinensis) on top of a thistle flower where it had been licking nectar, Cedar Key, Levy County. Florida, USA April

Roger Powell / Green anole lizard (Anolis carolinensis) on top of a thistle flower where it had been licking nectar, Cedar Key, Levy County. Florida, USA April

Colin Monteath / Totara (Podocarpus totara) tree shaped by the wind, Port Levy Saddle, Banks Peninsula, Canterbury, New Zealand

Nigel Cattlin / Workers repairing mud irrigation levies for small individual, experimental, trials plots in paddy rice (Oryza sativa), Luzon, Philippines

Nigel Cattlin / Irrigation canals and newly repaired mud irrigation levies channeling water to paddy rice crops in ear, Luzon, Philippines

Nigel Cattlin / Newly repaired neat, mud levies for irrigation water in young seedling paddy rice fields, Luzon, Philippines

Doug Gimesy / Portrait of Laurie Levy, Head of the Coalition Against Duck Shooting, standing on the shoreline of the Kerang Wetlands, Victoria, Australia, to protest the start of another duck hunting season. Concer...

Doug Gimesy / Portrait of Laurie Levy, Head of the Coalition Against Duck Shooting, standing on the shoreline of the Kerang Wetlands, Victoria, Australia, to protest the start of another duck hunting season. Concer...

Doug Gimesy / Laurie Levy, Head of the Coalition Against Duck Shooting, standing on the shoreline of the Kerang Wetlands, Victoria, Australia, to protest the start of another duck hunting season. Concerned about th...

Doug Gimesy / Aged 76 years, veteran anti-duck hunting protester and head of the Coalition Against Duck Shooting, Laurie Levy standing in the rain outside the Premier of Victoria's office, behind him nearly 800...

Doug Gimesy / Aged 76 years, veteran anti-duck hunting protester and head of the Coalition Against Duck Shooting, Laurie Levy, being filmed on a phone, standing in the rain outside the Premier of Victoria's off...