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April 24, 2019
7 Cool Things about the Blue-Footed Booby: Galapagos Animal Facts

The blue-footed booby is probably the most whimsical and entertaining animal you’ll see in the Galapagos Islands.

Sleeping Blue-footed Boobies in the Galapagos

So what is the deal with their feet? Why are they called “boobies”? We don’t have ALL the booby answers you may seek, but here are a bunch of interesting facts about the blue-footed booby in the Galapagos!

1 – Their Feet Turn Blue when they are Mature

Blue-footed boobies aren’t born with blue feet! And unlike marine iguanas, which may get their color from what they eat – the blue-footed booby bird does not eat blue food to get their foot color…although diet does play a partial role!

Once a blue-footed booby is old enough, their feet with begin to turn blue. It is one easy way to tell the difference between mature and immature boobies. The same goes for the red-footed booby birds!

Pupils can tell you if a booby is male or female!

2 – Female Blue-Footed Boobies are Bigger

Contrary to what many people assume, it is the female blue-footed boobies who are slightly larger than their male counterparts.

3 – Blue-Footed Booby Males will “Whistle” to Females when they want to attract a Mate

Males will elongate their necks and let out a long whistle call, as they display their wings to females circling above in the sky. From their land-based nesting spot males hope to lure in females with their visual display and call!

A “whistling” male trying to attract a lady blue-footed booby

4 – Female Booby Birds have Bluer Feet

Not all booby feet are created equal. Once mature, females tend to have deeper blue hued feet than males! While not always easy to notice, if you see a group of boobies together, try to compare their feet and see which ones have bluer feet!

5 – Once a pair of Blue-Footed Boobies is Together, they do a Courtship Dance

Perhaps one of their most interesting characteristics is how blue-footed booby couples will do a dance, in unison, by walking side-by-side and lifting their feet in unison. It’s an exaggerated looking walk, and quite comical if you’re lucky enough to see it!

A blue-footed booby couple in the Galapagos

6 – Male and Female Pupils are Different Sizes

For blue-footed boobies the females have larger pupils, sometimes looking quite large, while males may have more pinpoint type pupils. The difference is quite obvious and can be the easiest way to tell whether a booby is a male or female!

7 – If you see a Blue-Footed Booby “laughing” it is Actually Cooling itself

Blue-footed boobies can overheat in the hot Galapagos sun. One way they cool themselves and lower their body temperature is by opening their mouth and vibrating the skin in the neck. It looks like they may be laughing sometimes, but really they are just trying to cool themselves!

Cooling down – this blue-footed booby isn’t laughing

There you go – seven blue-footed booby factoids. Do you know any other interesting facts about blue-footed boobies?

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