Kiwi are a native animal from NZ that do not fly and come out at night. They have strong feet and a long beak with a strong sense of smell. It has the long beak for jabbing the dirt and sniffing for bugs. Their legs are for kick predators and scratching the ground.
The kiwi does have a lot of mammal-like features but they are not mammals. About 27 kiwi are killed by predators every week. That’s a population decline of around 1,400 kiwi every year. At this rate, kiwi may disappear from the mainland in our lifetime. One hundred years ago kiwi numbered in the millions. One dog can wipe out an entire kiwi population in a matter of days, 50% of chicks survive.
Their adaptations are not working for them as well as they used to. Before people kiwi had no predators and lived well. When the maōri came they got people as a predator and then the pakeha people started bring dogs, cats, rats, stoats and weasels here. The kiwi can't fly so they are sitting ducks. They stopped flying so they did not have to compete with the other birds.
In 2019 the population of kiwi was around 68,000 and declining.
Here is some links to a site with good kiwi facts