I usually link habituation to complacency of animal to a particular stimulus, therefore I think a decent example would be:
A bird is sitting in a cage, you place a stuffed cat infront of it, and it becomes alarmed as if it were a real predator and carries out a response pattern.
Over time, seeing this cat placed numerously infront of it and nothing happening, the bird gets used to cat and no longer finds it threatening.
The bird has learned that this particular stuffed cat is not a threat, but if you were to place a different stuffed cat infront of it, it'll react to it as if it were a real predator.
I hope this helps.
