According to the researchers, the colour of the blue-footed booby's feet changes with age.

The blue-footed booby usually lays one to three eggs at a time.

It is the same situation for the blue-footed booby.

You're not going to get to see the courtship dance of the blue-footed boobies after all.

I was like a female blue-footed booby at the start of a courtship dance.

The islands are also home to a few thousand birds, with species such as the blue-footed booby.

The nature preserve is home to whales and rare birds like the blue-footed booby.

The blue-footed booby wasn't afraid of me, but the name for this is not tameness.

I had a staring contest with a blue-footed booby.

The blue-footed booby population appears to having trouble breeding and thus is slowly declining.

They are famous for their giant tortosies and blue-footed booby birds.

The female blue-footed booby lays two or three eggs.

In the blue-footed booby, there is always the emergence of a brood hierarchy.

As we rode away, we saw blue-footed boobies on a cliff.

But never mind the penguins; it's the blue-footed boobies that will astonish you.

From the deck of our boat we spot blue-footed boobies dive-bombing for fish.

In the blue-footed booby, the chicks feed on regurgitated fish from their parents.

This island is home to a large population of blue-footed boobies and swallow-tailed gulls.

The blue-footed booby is monogamous, although it has the potential to be bigamous.

Blue-footed booby parents are passive spectators of this intrabrood conflict.

Nearby is a flatter area where blue-footed boobies nest.

Researchers have analyzed calls of blue-footed boobies and conducted playback experiments.

Facultative siblicide is seen in the closely related blue-footed booby.

On one page is the blue-footed booby.

Since the blue-footed booby does not have a brooding patch, it uses its feet to keep the eggs warm.