rockhopper penguin
 
Digital Zoo/ Photodisc/GettyImages
The bird population in the Antarctic region is about 350 million, half of which are penguins.
Early in penguin evolution, the bones, especially in the wings and hind limbs, became thick and dense.
Penguins are used to textures such as rock and water, so the nontoxic paint provides a different feeling on their feet.

SMART Vocabulary: related words and phrases

Birds found by or on the sea
Adélie penguin
albatross
booby
cormorant
curlew
fulmar
gannet
gentoo penguin
guillemot
gull
king penguin
kittiwake
oystercatcher
petrel
plover
rockhopper penguin
seagull
shag
skimmer
skua

Examples from literature

And if you take a boat ride, you can see penguins up close. 
But luckily for penguins, they can swim very well to get away from danger. 
But penguins also use their flippers to fight. 
In one hour, penguins can only walk about three kilometers across the ice of Antarctica. 
Like ducks, penguins have wide feet. 
Like other animals, penguins use their powerful flippers to swim fast towards food and away from danger. 
Like penguins, ostriches cannot fly, but they can walk and run fast. 
Penguins are birds, but they can’t fly! 
Penguins swim with their flippers, and eagles fly with their wings. 
Some penguins can swim at a speed of 24 kilometers an hour! 
This is not easy because penguins sometimes live in groups of thousands. 
When penguins cannot move to safety in time, they hit other animals with their hard flippers to make them go away. 
When some kinds of male penguins want to find a mate, for example, they look for just the right female. 

penguin | American Dictionary

penguin
noun[ C ]
us/ˈpeŋ·ɡwɪn, ˈpen-/
a black-and-white sea bird found in cold, southern parts of the world which cannot fly and swims using its small wings

Examples of penguin

penguin
For both voyages samples of penguin guano had profuse growth.
Tourist landings at penguin rookeries have become increasingly popular and operators typically offer several landings on a single voyage.
The recently increased numbers of visitors to concentrations of wildlife, and to penguin rookeries in particular, have heightened concern over this issue.
Both soils were submitted to penguins guano during the summer season.
We counted more than 11,000 emperor penguins there during ship and aerial surveys.
Today krill is consumed by an increased abundance of smaller whales (minkes), seals (notably the crabeater seal) and seabirds (notably several penguin species), plus humans.
Even now, the detailed descriptions of the breeding of elephant seals and gentoo penguins make a good popular introduction to these species.
Even the great journey in search of the eggs of the emperor penguin was in pursuit of a 'crackpot' (page 14) theory.
They also skinned and prepared emperor penguin skins.
Consider for example defaults concerning primary means of locomotion: "animals normally walk", "birds normally fly", "penguins normally swim".
The particles were likely to have originated from the penguin nesting areas east of the hut.
Next comes birds, divided into seabirds and penguins, followed by mammals, with sections on whales and seals.
Access by helicopter should avoid the penguin colony.
We got a few penguins, come right up to you.
I have no interest in preserving penguins for their own sake.
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.