Slightly tongue-in-cheek, but bear in mind that
we define intelligence, so we're bound to be a bit biased!
As such, if we see an animal mimicking a human behaviour, we say "Oooh ... isn't that clever!"
Yeah, because a chimp has a fundamental need to dress up in dungarees and ride a tricycle!
We also focus on what's important to
us, and sometimes forget it might not be important to animals ... and vice versa! So, we can sit there congratulating ourselves on our brilliant intelligence having invented the Sat-Nav. Meanwhile, two swallows are sitting on a telephone wire watching a couple in a car arguing about which way they should turn at a junction, and thinking to themselves "FFS! We've just flown from Africa and found our way back to the exact spot we were last year! How dumb are these humans?"