Alan Murphy/ BIA / Great Kiskadee (Pitangus sulphuratus) and Green Jay (Cyanocorax yncas) fighting, Texas

Alan Murphy/ BIA / Say's Phoebe (Sayornis saya) landing, Texas

Alan Murphy/ BIA / Eastern Phoebe (Sayornis phoebe) feeding on red berries, Texas

Tim Zurowski/ BIA / Western Wood-Pewee (Contopus sordidulus), British Columbia, Canada

Alan Murphy / Clay-colored Thrush (Turdus grayi) and Great Kiskadee (Pitangus sulphuratus) pair fighting, Texas

Alan Murphy / Say's Phoebe (Sayornis saya) picking off berries in flight, New Mexico

Alan Murphy / Great Kiskadee (Pitangus sulphuratus) flying, Texas

Alan Murphy / Scissor-tailed Flycatcher (Tyrannus forficatus) male flying, Texas

Alan Murphy / Great Kiskadee (Pitangus sulphuratus), Texas

Alan Murphy / Tropical Kingbird (Tyrannus melancholicus), Texas

Alan Murphy / Eastern Wood-Pewee (Contopus virens) male, Texas

Alan Murphy / Eastern Phoebe (Sayornis phoebe) male with fish prey, Texas

Alan Murphy / Olive-sided Flycatcher (Contopus cooperi), British Columbia, Canada

Alan Murphy / Least Flycatcher (Empidonax minimus) calling, British Columbia, Canada

Peter Waechtershaeuser / Say's Phoebe (Sayornis saya), New Mexico

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...

Marie Read / Scissor-tailed Flycatcher (Tyrannus forficatus) calling and displaying with wings and tail outspread, Wichita Mountains National Wildlife refuge, Oklahoma, USA, May

Konrad Wothe / Cattle Tyrant (Machetornis rixosa) on Capybara (Hydrochoerus hydrochaeris), 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

Alan Murphy/ BIA / Great Kiskadee (Pitangus sulphuratus) feeding on berries, Texas

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.

Donald M. Jones / Willow Flycatcher (Empidonax traillii) male calling in spring, Montana

Thomas Marent / Vermilion Flycatcher (Pyrocephalus rubinus) male, Pereira, Colombia

Thomas Marent / Fork-tailed Flycatcher (Tyrannus savana), Rio Claro Nature Reserve, Colombia

Thomas Marent / Fork-tailed Flycatcher (Tyrannus savana), Rio Claro Nature Reserve, Colombia

Thomas Marent / Pied Water-Tyrant (Fluvicola pica), Rio Claro Nature Reserve, Colombia

Thomas Marent / Rufous-breasted Chat-Tyrant (Ochthoeca rufipectoralis), Selva de Ventanas Natural Reserve, Colombia

Thomas Marent / Rufous-breasted Chat-Tyrant (Ochthoeca rufipectoralis), Selva de Ventanas Natural Reserve, Colombia

Thomas Marent / Eastern Kingbird (Tyrannus tyrannus) juvenile, Bogota, Colombia

Thomas Marent / Eastern Wood-Pewee (Contopus virens), Putumayo, Colombia

Glenn Bartley/ BIA / Fire-eyed Diucon (Xolmis pyrope), Andes, Chile

Glenn Bartley/ BIA / Fire-eyed Diucon (Xolmis pyrope), Andes, Chile

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

E.J. Peiker/ BIA / Eastern Kingbird (Tyrannus tyrannus), Texas

E.J. Peiker/ BIA / Acadian Flycatcher (Empidonax virescens), Texas

Alan Murphy/ BIA / Great Crested Flycatcher (Myiarchus crinitus), Texas

Alan Murphy/ BIA / Brown-crested Flycatcher (Myiarchus tyrannulus), Arizona

Alan Murphy/ BIA / Willow Flycatcher (Empidonax traillii) calling, British Columbia, Canada

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

Alan Murphy/ BIA / Great Kiskadee (Pitangus sulphuratus) pair and Northern Mockingbird (Mimus polyglottos) fighting, Texas

Michael Milicia/ BIA / Dark-faced Ground-Tyrant (Muscisaxicola macloviana), Sea Lion Island, Falkland Islands

Donald M. Jones / Common Tody-Flycatcher (Todirostrum cinereum), Costa Rica

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

Alan Murphy/ BIA / Great Kiskadee (Pitangus sulphuratus) and Golden-fronted Woodpecker (Melanerpes aurifrons) female fighting, Texas

Alan Murphy/ BIA / Black Phoebe (Sayornis nigricans), California

Alan Murphy/ BIA / Great Kiskadee (Pitangus sulphuratus) feeding on berries, Texas

Alan Murphy/ BIA / Ash-throated Flycatcher (Myiarchus cinerascens) calling, Texas

Tim Zurowski/ BIA / Western Kingbird (Tyrannus verticalis), Washington

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

Agustin Esmoris / Fire-eyed Diucon (Xolmis pyrope), San Carlos de Bariloche, Argentina

Agustin Esmoris / Tropical Kingbird (Tyrannus melancholicus), Argentina

Agustin Esmoris / Many-colored Rush Tyrant (Tachuris rubrigastra), Bahia Blanca, Argentina

Agustin Esmoris / Greater Wagtail-Tyrant (Stigmatura budytoides), Argentina

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.

Tui De Roy / Large-billed Flycatcher (Myiarchus magnirostris) in camera lens hood, Puerto Egas, Santiago Island, Galapagos Islands, Ecuador

Tui De Roy / Large-billed Flycatcher (Myiarchus magnirostris), Santa Cruz Island, Galapagos Islands, Ecuador

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