Juvenile frigate bird.

Hood Island mockingbird.

Hood Island mockingbird.

Hood Island mockingbird.

Galapagos mockingbird on red gravel.

Galapagos hawk.

Galapagos hawk.

Female yellow warbler.

Male yellow warbler.

Yellow crowned night heron.

Courting blue-footed boobies.

Courting blue-footed boobies.

Courting blue-footed boobies.

Courting blue-footed boobies.

Juvenile blue-footed booby.

The blue feet of a blue-footed booby.

A blue-footed booby on its nest.

A blue-footed booby and its chick.

A blue-footed booby and its chick.

A blue-footed booby and its chick.

A blue-footed booby and its chick.

Courting dance of the blue-footed booby.

Courting dance of the blue-footed booby.

Blue-footed booby pair.

Blue-footed booby pair

Wonder why they're called blue-footed boobies?

Nazca booby on a rock perch.

A pair of Nazca boobies.

A close-up of a Nazca booby.

A pair of Nazca boobies in a mating dance.

A pair of Nazca boobies in a mating dance.

A pair of Nazca boobies in a mating dance.

A pair of Nazca boobies in a mating dance.

American oystercatcher.

A pair of American oystercatchers.

Pelican in nesting area.

Pelicans in nesting area.

Pelican in nesting area.

Pelican in nesting area.

Swallow-tailed gull perched on a rock overlooking the sea.

Juvenile waved albatross.

Adult waved albatross in flight.

Male great frigatebird in flight.

Male great frigatebirds.

Frigatebirds. Male with inflated waddle.

Juvenile great frigatebird.

Juvenile great frigatebird.

Male great frigatebird.

Male great frigatebird.

Juvenile great frigatebird.