Gabriel Rojo / Cattle tyrant (Machetornis rixosus) perched on capibara (Hydrochoerus hydrochaeris) Ibera Marshes, Corrientes Province, Argentina

Floris van Breugel / Black-billed shrike-tyrant (Agriornis montanus) in the snow with Mount Fitz Roy visible beyond. Patagonia, Argentina, June 2014.

Floris van Breugel / Black-billed shrike-tyrant (Agriornis montanus) perched in snowy tree with Mount Fitz Roy visible beyond. Patagonia, Argentina, June 2014. Awarded in Land category, Wildlife Photographer of the Year 2...

Rolf Nussbaumer / Ash throated flycatcher {Myiarchus cinerascens} with stick insect prey, Texas, USA

Rolf Nussbaumer / Vermilion flycatcher fledgling testing wings {Pyrocephalus rubinus} Texas, USA.

Rolf Nussbaumer / Vermilion flycatcher pair at nest feeding chicks, Texas, USA {Pyrocephalus rubinus}

Rolf Nussbaumer / Scissor tailed flycatcher, female {Tyrannus forficatus} Texas, USA

Pete Oxford / Capybara {Hydrochoerus hydrochaeris} with Tyrant flycatcher bird on its back, Pantanal, Brazil

Karine Aigner / Vermilion flycatcher (Pyrocephalus rubinus) on tree, white background. Texas, USA. March.

Oscar Dewhurst / Many-coloured rush tyrant (Tachuris rubrigastra) perched on reed stem at the water's edge. Lake Titicaca, Puno, Peru. September. Cropped

Oscar Dewhurst / Social flycatcher (Myiozetetes similis) perched on dead branch overhanging oxbow lake. Manu National Park, Madre de Dios, Peru. September

Oscar Dewhurst / Social flycatcher (Myiozetetes similis) perched on branch overhanging oxbow lake. Manu National Park, Madre de Dios, Peru. September. Cropped

Bernard Castelein / Great kiskadee (Pitangus sulphuratus), singing, Municipal protected area of Pampas del Yacuma, Bolivia

Bernard Castelein / Capybara (Hydrochaeris hydrochaeris), and Tropical KIngbird ( Tyrannus melancholicus) Pampas del Yacuma Protected Area, Bolivia

Bernard Castelein / Capybara (Hydrochaeris hydrochaeris), mudbathing, and Tropical KIngbird ( Tyrannus melancholicus) Pampas del Yacuma Protected Area, Bolivia

Marie Read / Equipment set up for remote control photography at nest hole of Great Crested Flycatcher (Myiarchus crinitus), New York, USA. Camera, fitted with wide angle lens, mounted on monopod attached to ladder...

Marie Read / Great crested flycatcher (Myiarchus crinitus), female alighting at nest cavity entrance carrying pine needles as nest material, wide angle captured with remote camera to show habitat, New York, USA. M...

David Pattyn / Cinnamon flycatcher (Pyrrhomyias cinnamomeus) , Bellavista private reserve, Mindo, Pichincha, Ecuador, July

Nick Hawkins / Cocos flycatcher (Nesotriccus ridgwayi) perched on branch, endemic species. Cocos Island National Park, Costa Rica.

Nick Hawkins / Galapagos flycatcher (Myiarchus magnirostris) perched on branch. San Cristobal Island, Galapagos.

Nick Hawkins / Galapagos flycatcher (Myiarchus magnirostris) perched on branch. San Cristobal Island, Galapagos.

David Perpinan / Vermilion flycatcher (Pyrocephalus rubinus) taking off from and landing on perch, Pantanal, Mato Grosso do Sul, Brazil.

David Perpinan / Vermilion flycatcher (Pyrocephalus rubinus) feeding before taking off from perch, Pantanal, Mato Grosso do Sul, Brazil.

David Perpinan / Vermilion flycatcher (Pyrocephalus rubinus) preening, Pantanal, Mato Grosso do Sul, Brazil.

David Perpinan / White-throated kingbird (Tyrannus albogularis), Pantanal, Mato Grosso do Sul, Brazil.

Franco Banfi / Great kiskadee (Pitangus sulphuratus) two perched one displaying crest, Pantanal, Brazil.

Eladio Fernandez / Cuban pewee (Contopus caribaeus) perched, Cuba

Eladio Fernandez / Cuban pewee (Contopus caribaeus) perched, Cuba

Eladio Fernandez / Loggerhead kingbird (Tyrannus caudifasciatus) Cuba

Eladio Fernandez / Loggerhead kingbird (Tyrannus caudifasciatus) with feathers fluffed up, Cuba

Eladio Fernandez / La Sagra's flycatcher (Myiarchus sagrae) perched, with blue sky, Cuba

Barry Mansell / Eastern phoebe (Sayornis phoeba) North Florida, USA, October.

Nick Garbutt / Black-backed water tyrant (Fluvicola albiventer) foraging amonst water hyacinth. Cuiaba River, northern Pantanal, Mato Grosso, Brazil.

Doug Wechsler / Black-billed shrike-tyrant (Agriornis montanus) with nest material; Antisanilla Reserve, Ecuador.

Phil Savoie / Eastern kingbird (Tyrannus tyrannus) perched, surrounded by swarm of mating Caddisfly (Brachycentrus occidentalis) Montana, USA, July.

Phil Savoie / Eastern kingbird (Tyrannus tyrannus) perched, surrounded by swarm of mating Caddisfly (Brachycentrus occidentalis) Montana, USA, July.

Gabriel Rojo / Many-colored rush tyrant (Tachuris rubrigastra) La Pampa, Argentina

Tui De Roy / Galapagos flycatcher (Myiarchus magnirostris) Sullivan Bay, Santiago Island, Galapagos

Tui De Roy / Galapagos flycatcher (Myiarchus magnirostris) Highlands, El Puntudo Region, Santa Cruz Island, Galapagos

Tui De Roy / Galapagos flycatcher (Myiarchus magnirostris) Highlands, El Puntudo Region, Santa Cruz Island, Galapagos

Tui De Roy / Galapagos vermilion flycatcher (Pyrocephalus nanus), male, feeding on moth, Sierra Negra Volcano, Isabela Island, Galapagos. Vulnerable species.

Tui De Roy / Galapagos vermilion flycatcher (Pyrocephalus nanus) male, Sierra Negra Volcano, Isabela Island, Galapagos. Vulnerable species.

Roy Mangersnes / Vermilion flycatcher (Pyrocephalus rubinus) perched, Santa Cruz Island, Galapagos.

Roy Mangersnes / Vermilion flycatcher (Pyrocephalus rubinus) on Santa Cruz Island, Galapagos.

Tui De Roy / Vermilion flycatcher (Pyrocephalus rubinus) perched, Galapagos

Tui De Roy / Vermilion flycatcher (Pyrocephalus rubinus), Galapagos

Tui De Roy / Galapagos flycatcher (Myiarchus magnirostris), Galapagos

Gabriel Rojo / Vermillion flycatcher (Pyrocephalus rubinus) perched, Calden Forest, La Pampa, Argentina

Gabriel Rojo / Strange-tailed tyrant (Alectrurus risora) perched, Ibera Marshes, Corrientes Province, Argentina

Gabriel Rojo / Great kiskadee (Pitangus sulphuratus) drinking, Calden forest, La Pampa, Argentina

Gabriel Rojo / Strange-tailed tyrant (Alectrurus risora) perched, Ibera Marshes, Corrientes Province, Argentina

Gabriel Rojo / White-headed marsh tyrant (Arundinicola leucocephala) on reed, Ibera Marshes, Corrientes Province, Argentina

Gabriel Rojo / Strange-tailed tyrant (Alectrurus risora)perched on reed, Ibera Marshes, Corrientes Province, Argentina

Gabriel Rojo / Vermillion flycatcher (Pyrocephalus rubinus) Calden Forest, La Pampa, Argentina

Gabriel Rojo / Vermillion flycatcher (Pyrocephalus rubinus) Calden Forest, La Pampa, Argentina

Gabriel Rojo / Great kiskadee (Pitangus sulphuratus), Calden forest, La Pampa, Argentina

Gabriel Rojo / White-winged black-tyrant (Knipolegus aterrimus) Calden forest, La Pampa, Argentina

Gabriel Rojo / White-winged black-tyrant (Knipolegus aterrimus) Calden forest, La Pampa, Argentina

Gabriel Rojo / Great kiskadee (Pitangus sulphuratus) feeding on berry, Calden forest, La Pampa, Argentina

Gabriel Rojo / Lesser shrike-tyrant (Agriornis murinus) La Pampa-Argentina

Gabriel Rojo / Yellow-browned tyrant (Strapa icterophrys) on wire, Ibera Marshes Corrientes Province, Argentina

Gabriel Rojo / Yellow-browned tyrant (Satrapa icterophrys) Ibera Marshes Corrientes Province, Argentina

Doug Wechsler / Cinnamon flycatcher (Pyrrhomyias cinnamomeus) in cloud forest, Province Zamora-Chinchipe, Tapichalaca Biological Reserve, Ecuador, March

Gerrit Vyn / Tropical kingbird (Tyrannus melancholicus). Yucutan, Mexico. February.

Jack Dykinga / Vermilion flycatcher (Pyrocephalus rubinus) female stretching wings, Catalina State Park, Arizona, USA, May.

Jose B. Ruiz / Fire-eyed diucon (Xolmis pyrope) Torres del Paine. Patagonia, Puerto Natales, Chile.

David Tipling / Dark-faced ground tyrant (Muscisaxicola macloviana), Torres del Paine NP, Patagonia Chile, November

David Tipling / Tufted tit tyrant (Anairetes parulus) Torres del Paine NP, Patagonia, Chile October

John Cancalosi / Ash-throated flycatcher (Myiarchus cinerascens) bringing food to nest in saguaro cactus, Sonoran Desert , Arizona, USA, July.

John Cancalosi / Ash-throated flycatcher (Myiarchus cinerascens) bringing food to nest in saguaro cactus, Sonoran Desert , Arizona, USA, July.

Gabriel Rojo / Fork-tailed flycatcher (Tyrannus savana) La Pampa, Argentia.

Gabriel Rojo / Fire-eyed diucon (Xolmis pyrope) Perito Moreno Glacier, Parque Nacional , Los Glaciares, Santa Cruz, Patagonia Argentina

Gabriel Rojo / Fire-eyed Diucon (Xolmis pyrope) Perito Moreno Glacier, Parque Nacional , Los Glaciares, Santa Cruz, Patagonia Argentina

Konrad Wothe / Tropical kingbird (Tyrannus melancholicus) female at nest on telephone pole, Tobago, West Indies.

Gabriel Rojo / Great Kiskadee (Pitangus sulphuratus) Calden forest, La Pampa, Argentina

Gabriel Rojo / Great Kiskadee (Pitangus sulphuratus) Calden forest, La Pampa, Argentina

Gabriel Rojo / Lesser Shrike-Tyrant (Agriornis murinus) La Pampa, Argentina

Gabriel Rojo / Fork-tailed flycatcher (Tyrannus savana) sitting on wire fence in front of Domestic cow, La Pampa, Argentina

Gabriel Rojo / Vermilion flycatcher (Pyrocephalus rubinus) feeding on winged insect, La Pampa, Argentina

Gabriel Rojo / Vermilion flycatcher (Pyrocephalus rubinus) La Pampa, Argentina

Gabriel Rojo / Tufted tit-tyrant (Anairetes parulus) La Pampa, Argentina

Tony Heald / Cattle tyrant (Machetornis rixosa) stretching wing, Pantanal, Brazil

Tony Heald / Capybara (Hydrochoerus hydrochaeris) female with young, also with Cattle tyrant (Machetornis rixosa) on her back, Pantanal, Brazil

Tony Heald / White-headed marsh tyrant (Arundinicola leucocephala) male profile, Pantanal, Brazil

Brent Stephenson / Dark-faced ground-tyrant (Muscisaxicola maclovianus) calling perched on quartzite rock with yellow lichens, Gypsy Cove, Falkland Islands, South Atlantic, January.

Claudio Contreras / Scissor-tailed flycatchers (Tyrannus forficatus) fighting for perch on tree snag, Laredo Borderlands, Texas, USA. April

Gerrit Vyn / Vermillion flycatcher (Pyrocephalus rubinus) male, Yucutan, Mexico. February.

Gerrit Vyn / Eastern kingbird (Tyrannus tyrannus) Anahuac National Wildlife Refuge, Texas, USA. March.

Gerrit Vyn / Scissor-tailed flycatcher (Tyrannus forficatus) in breeding plumage. Mustang Island, Texas, USA. March.

Gerrit Vyn / Great kiskadee (Pitangus sulphuratus) perched, Willacy County, Texas, USA. March.

Suzi Eszterhas / Great kiskadee (Pitangus sulphuratus) perched with nesting material, Pantanal, Brazil.

Suzi Eszterhas / Great kiskadee (Pitangus sulphuratus) perched with nesting material, Pantanal, Brazil.

Suzi Eszterhas / Tropical kingbird (Tyrannus melancholicus) perched, rear view, Pantanal, Brazil

Suzi Eszterhas / Great kiskadee (Pitangus sulphuratus) perched, Pantanal, Brazil.

Cyril Ruoso / Rufous naped ground tyrant (Muscisaxicola rufivertex) Colca Canyon, Andes, Peru.