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.

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.

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

Ole Jorgen Liodden / Vermilion flycatcher (Pyrocephalus rubinus nanus) perched on mossy branch, Galapagos.

Ole Jorgen Liodden / Vermilion flycatcher (Pyrocephalus rubinus nanus) perched on branch, Galapagos.

Russell Laman / Galapagos Flycatcher (Myiarchus magnirostris) perched on a branch and looking out over the forest, Santa Cruz Island, Galapagos Islands, Ecuador

Russell Laman / Galapagos Flycatcher (Myiarchus magnirostris) perched on twig, Santa Cruz Island, Galapagos Islands, Ecuador

Tui De Roy / Vermilion Flycatcher (Pyrocephalus rubinus) male, Alcedo Volcano, Isabela Island, Ecuador

Tui De Roy / Vermilion flycatcher (Pyrocephalus rubinus) female perched. Galapagos Islands, Ecuador, December.

Tui De Roy / Vermilion flycatcher (Pyrocephalus rubinus) male perched. Galapagos Islands, Ecuador, December.

Tui De Roy / Vermilion flycatcher (Pyrocephalus rubinus) male with invertebrate prey in beak. Galapagos Islands, Ecuador, December.

Tui De Roy / Vermilion flycatcher (Pyrocephalus rubinus) male perched. Galapagos Islands, Ecuador, December.

Tui De Roy / Galapagos flycatcher (Myiarchus magnirostris) portrait. Floreana Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos flycatcher (Myiarchus magnirostris) portrait. Floreana Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos flycatcher (Myiarchus magnirostris) portrait. Santa Cruz Island, Galapagos, June.

Tui De Roy / Galapagos flycatcher (Myiarchus magnirostris) perched on fern. Santa Cruz Highlands, Galapagos, Ecuador, November.

Tui De Roy / Galapagos flycatcher (Myiarchus magnirostris) perched on fern. Santa Cruz Highlands, Galapagos, Ecuador, November.

Tui De Roy / Galapagos flycatcher (Myiarchus magnirostris) portrait. Santa Cruz Island, Galapagos, Ecuador, June.

Steve Gettle / Vermilion Flycatcher (Pyrocephalus rubinus) male, Galapagos Islands, Ecuador

Pete Oxford / Galapagos / large billed flycatcher (Myiarchus magnirostris) perched, Santiago Island, Galapagos Islands, endemic

Tui De Roy / Vermilion Flycatcher (Pyrocephalus rubinus) immature male, Galapagos Islands, Ecuador

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

Pete Oxford / Large-billed Flycatcher (Myiarchus magnirostris), Santiago Island, Galapagos Islands, Ecuador

Tim Laman / Vermilion flycatcher (Pyrocephalus rubinus) on a log, Santa Cruz Island, Galapagos Islands.

Tim Laman / Large-billed / Galapagos flycatcher (Myiarchus magnirostris) perched on a branch. Punta Cormorant, Floreana (Charles) Island, Galapagos Islands.

Tui De Roy / Vermilion Flycatcher (Pyrocephalus rubinus) male, Alcedo Volcano, Isabella Island, Galapagos Islands, Ecuador

Pete Oxford / Galapagos flycatcher (Myiarchus magnirostris) Santa Fe Island, Galapagos

Pete Oxford / Galapagos flycatcher (Myiarchus magnirostris) Santa Fe Island, Galapagos

Tom Vezo / Galapagos flycatcher (Myiarchus magnirostris) Galapagos Darwin Centre, Santa Cruz Island, Galapagos

Mike Read / Galapagos flycatcher {Myiarchus magnirostris} Santamaria Is, Galapagos

Tom Vezo / Galapagos Flycatcher {Myiarchus magnirostris} Darwin Centre, Santa Cruz Island, Galapagos.

Tom Vezo / Galapagos Flycatcher {Myiarchus magnirostris} portrait on branch, Darwin Centre, Santa Cruz Island, Galapagos.

Pete Oxford / Galapagos finch {Myiarchus magnirostris} perching on branch, Isabela Island, Galapagos.

Tui De Roy / Vermilion Flycatcher (Pyrocephalus rubinus) male in mossy scalesia cloud forest habitat, highlands, Santa Cruz Island, Galapagos Islands, Ecuador

Tui De Roy / Vermilion Flycatcher (Pyrocephalus rubinus) male on moss covered branch, Santa Cruz Island, Galapagos Islands, Ecuador

Tui De Roy / Vermilion Flycatcher (Pyrocephalus rubinus) male in mossy scalesia tree, Santa Cruz Island, Galapagos Islands, Ecuador

Pete Oxford / Vermillion flycatcher {Pyrocephalus rubinus}, Santa Cruz Island, Galapagos Ecuador

Pete Oxford / Vermilion flycatcher, Santa Cruz Island, Galapagos Islands

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

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

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

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

Pete Oxford / Vermilion Flycatcher (Pyrocephalus rubinus) male, Galapagos Islands, Ecuador

Mike Read / Vermilion flycatcher pair {Procephalus rubinus} on Giant tortoise. Galapagos Santa Cruz

Mike Read / Galapagos flycatcher {Myiarchus magnirostris} endemic Galapagos

Tui De Roy / Little vermillion flycatcher (Pyrocephalus nanus) portrait, Alcedo Volcano, Isabela Island, Galapagos Islands. July.

Tui De Roy / Little vermillion flycatcher (Pyrocephalus nanus) perched on fern frond, Santo Thomas, Isabela Island, Galapagos Islands. June.

Lucas Bustamante / Galapagos flycatcher (Myiarchus magnirostris) in flight, Santiago Island, Galapagos National Park, Galapagos Islands.

Lucas Bustamante / Galapagos flycatcher (Myiarchus magnirostris) building nest amongst spines of a Galapagos prickly pear (Opuntia galapageia), Santa Cruz Island, Galapagos National Park, Galapagos Islands.

Tui De Roy / Galapagos flycatcher (Myiarchus magnirostris) perched on branch, Cerro Dragon, Santa Cruz Island, Galapagos Islands, Ecuador.

Tui De Roy / Male Darwin's flycatcher (Pyrocephalus nanus) bringing small katydid insect to nest, Los Gemelos, Highlands, Santa Cruz Island, Galapagos Islands, Ecuador.

Tui De Roy / Female Darwin's flycatcher (Pyrocephalus nanus), near nest, perched on tree trunk, Los Gemelos, Highlands, Santa Cruz Island, Galapagos Islands, Ecuador.

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

Tui De Roy / Darwin's Flycatcher (Pyrocephalus nanus) male, Highlands, Santa Cruz Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos vermillion flycatcher (Pyrocephalus nanus), endemic species, highland cloud forest, Santa Cruz Island, Galapagos Islands.

Tui De Roy / Galapagos vermilion flycatcher (Pyrocephalus nanus) male perched on twig, Pinzon Island, Galapagos. Endemic species.

Tui De Roy / Galapagos vermilion flycatcher (Pyrocephalus nanus) male and female at nest, Alcedo Volcano, Isabela Island, Galapagos.

Tui De Roy / Galapagos vermilion flycatcher (Pyrocephalus nanus) male perched with fledglings, Alcedo Volcano, Isabela Island, Galapagos.

Tui De Roy / Galapagos flycatcher (Myiarchus magnirostris) parent feeding wild berry to fledgling in photographer Tui De Roy's garden, Santa Cruz Island, Galapagos Islands