Re: habituation, are there animals smart enough to recognise the difference between "this human is safe" and "all humans are safe"? There's a pair of pigeons that repeatedly nest behind my aircon unit, I don't feed them or try to interact with them, but take photos from inside. When they first arrived, they'd fly off if I even walked into the room. Now I can go right up to the glass and they don't care. They still fly away if visitors/strangers try to approach the window though. Thoughts?
They are, but there has to be a reason to differentiate between the two. Pigeons that live in public have no reason to care about certain faces, unless they show up and feed them regularly. You’re living in much closer proximity to the two, so they’ve got a reason to remember you as ‘the person who is much nearer the nest than anyone else’ and pay close attention to your behavior.